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Trigonometric Ratio
Collection of board questions from 2020 to 2025 across all 9 education boards.
194
MCQs
53
Creative Questions
Creative Questions (CQ)
Barisal Board 2025
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মি দীর্ঘ একটি মই মাটির সাথে 60° কোণ করে দেয়ালে ঠেকানো আছে।
Chapter: Trigonometric Ratio
▼
Chittagong Board 2025
CQ5
Creative
Stem:
A tree 15 m tall casts a shadow of length \(15\sqrt{3}\) m on the ground.
উদ্দীপক:
15 মি উঁচু একটি গাছের ছায়া মাটিতে \(15\sqrt{3}\) মি দীর্ঘ।
Chapter: Trigonometric Ratio
▼
Comilla Board 2025
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মি দীর্ঘ একটি মই মাটির সাথে 60° কোণ করে দেয়ালে ঠেকানো আছে।
Chapter: Trigonometric Ratio
▼
Dhaka Board 2025
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মি দীর্ঘ একটি মই মাটির সাথে 60° কোণ করে দেয়ালে ঠেকানো আছে।
Chapter: Trigonometric Ratio
▼
Dinajpur Board 2025
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মি দীর্ঘ একটি মই মাটির সাথে 60° কোণ করে দেয়ালে ঠেকানো আছে।
Chapter: Trigonometric Ratio
▼
Jessore Board 2025
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মি দীর্ঘ একটি মই মাটির সাথে 60° কোণ করে দেয়ালে ঠেকানো আছে।
Chapter: Trigonometric Ratio
▼
Mymensingh Board 2025
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মি দীর্ঘ একটি মই মাটির সাথে 60° কোণ করে দেয়ালে ঠেকানো আছে।
Chapter: Trigonometric Ratio
▼
Rajshahi Board 2025
CQ5
Creative
Stem:
From a point on the ground, the angle of elevation of the top of a building is 30°. The building is 20 m tall.
উদ্দীপক:
মাটির একটি বিন্দু থেকে একটি ভবনের চূড়ায় উন্নতি কোণ 30°। ভবনটি 20 মি উঁচু।
Chapter: Trigonometric Ratio
▼
Sylhet Board 2025
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মি দীর্ঘ একটি মই মাটির সাথে 60° কোণ করে দেয়ালে ঠেকানো আছে।
Chapter: Trigonometric Ratio
▼
Barisal Board 2024
CQ6
Creative
Stem:
A kite flies at 100 m height. The string makes 30° with the ground.
Chapter: Trigonometric Ratio
▼
Chittagong Board 2024
CQ6
Creative
Stem:
From a point on ground, angle of elevation to top of 50 m tower is 30°.
Chapter: Trigonometric Ratio
▼
Comilla Board 2024
CQ6
Creative
Stem:
Two buildings are 30 m apart. One is 20 m tall. Angle of elevation from top of shorter to top of taller is 30°.
Chapter: Trigonometric Ratio
▼
Dhaka Board 2024
CQ6
Creative
Stem:
From the top of a 30 m tower, the angle of depression to a ground point is 45°.
উদ্দীপক:
30 মি উঁচু মিনারের শীর্ষ থেকে মাটির একটি বিন্দুর অবনতি কোণ 45°।
Chapter: Trigonometric Ratio
▼
Dinajpur Board 2024
CQ6
Creative
Stem:
From ground, angle of elevation of top of tower is 60°. Tower is 45 m tall.
Chapter: Trigonometric Ratio
▼
Jessore Board 2024
CQ6
Creative
Stem:
Angle of elevation of top of tree from 20 m away is 45°.
Chapter: Trigonometric Ratio
▼
Mymensingh Board 2024
CQ6
Creative
Stem:
A ladder 10 m long leans against a wall. Foot makes 60° with ground.
Chapter: Trigonometric Ratio
▼
Rajshahi Board 2024
CQ6
Creative
Stem:
From top of 40 m building, angle of depression = 60°.
Chapter: Trigonometric Ratio
▼
Sylhet Board 2024
CQ6
Creative
Stem:
From a cliff 60 m high, angle of depression of a ship is 45°.
Chapter: Trigonometric Ratio
▼
Barisal Board 2023
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মিটার লম্বা একটি মই ভূমির সাথে 60° কোণ করে একটি দেওয়ালে হেলান দেওয়া আছে।
Chapter: Trigonometric Ratio
▼
Chittagong Board 2023
CQ5
Creative
Stem:
\(\sec\theta = \frac{5}{3}\) where \(\theta\) is an acute angle.
উদ্দীপক:
\(\sec\theta = \frac{5}{3}\) যেখানে \(\theta\) সূক্ষ্মকোণ।
Chapter: Trigonometric Ratio
▼
Comilla Board 2023
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মিটার লম্বা একটি মই ভূমির সাথে 60° কোণ করে একটি দেওয়ালে হেলান দেওয়া আছে।
Chapter: Trigonometric Ratio
▼
Dhaka Board 2023
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মিটার লম্বা একটি মই ভূমির সাথে 60° কোণ করে একটি দেওয়ালে হেলান দেওয়া আছে।
Chapter: Trigonometric Ratio
▼
Dinajpur Board 2023
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মিটার লম্বা একটি মই ভূমির সাথে 60° কোণ করে একটি দেওয়ালে হেলান দেওয়া আছে।
Chapter: Trigonometric Ratio
▼
Jessore Board 2023
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মিটার লম্বা একটি মই ভূমির সাথে 60° কোণ করে একটি দেওয়ালে হেলান দেওয়া আছে।
Chapter: Trigonometric Ratio
▼
Mymensingh Board 2023
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মিটার লম্বা একটি মই ভূমির সাথে 60° কোণ করে একটি দেওয়ালে হেলান দেওয়া আছে।
Chapter: Trigonometric Ratio
▼
Rajshahi Board 2023
CQ5
Creative
Stem:
From a point on the ground, the angle of elevation of the top of a building is 30°. The building is 20 m tall.
উদ্দীপক:
মাটির একটি বিন্দু থেকে একটি ভবনের চূড়ার উন্নতি কোণ 30°। ভবনটি 20 মিটার উঁচু।
Chapter: Trigonometric Ratio
▼
Sylhet Board 2023
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মিটার লম্বা একটি মই ভূমির সাথে 60° কোণ করে একটি দেওয়ালে হেলান দেওয়া আছে।
Chapter: Trigonometric Ratio
▼
Barisal Board 2022
CQ6
Creative
Stem:
From a point 20 m away from the base of a tower, the angle of elevation of the top is 60°.
উদ্দীপক:
একটি মিনারের পাদদেশ থেকে 20 মি. দূরের একটি বিন্দু থেকে চূড়ার উন্নতি কোণ 60°।
Chapter: Trigonometric Ratio
▼
Comilla Board 2022
CQ6
Creative
Stem:
From a point 20 m away from the base of a tower, the angle of elevation of the top is 60°.
উদ্দীপক:
একটি মিনারের পাদদেশ থেকে 20 মি. দূরের একটি বিন্দু থেকে চূড়ার উন্নতি কোণ 60°।
Chapter: Trigonometric Ratio
▼
Dhaka Board 2022
CQ6
Creative
Stem:
From a point 20 m away from the base of a tower, the angle of elevation of the top is 60°.
উদ্দীপক:
একটি মিনারের পাদদেশ থেকে 20 মি. দূরের একটি বিন্দু থেকে চূড়ার উন্নতি কোণ 60°।
Chapter: Trigonometric Ratio
▼
Dinajpur Board 2022
CQ6
Creative
Stem:
From a point 20 m away from the base of a tower, the angle of elevation of the top is 60°.
উদ্দীপক:
একটি মিনারের পাদদেশ থেকে 20 মি. দূরের একটি বিন্দু থেকে চূড়ার উন্নতি কোণ 60°।
Chapter: Trigonometric Ratio
▼
Jessore Board 2022
CQ6
Creative
Stem:
From a point 20 m away from the base of a tower, the angle of elevation of the top is 60°.
উদ্দীপক:
একটি মিনারের পাদদেশ থেকে 20 মি. দূরের একটি বিন্দু থেকে চূড়ার উন্নতি কোণ 60°।
Chapter: Trigonometric Ratio
▼
Mymensingh Board 2022
CQ6
Creative
Stem:
From a point 20 m away from the base of a tower, the angle of elevation of the top is 60°.
উদ্দীপক:
একটি মিনারের পাদদেশ থেকে 20 মি. দূরের একটি বিন্দু থেকে চূড়ার উন্নতি কোণ 60°।
Chapter: Trigonometric Ratio
▼
Rajshahi Board 2022
CQ6
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মি. দীর্ঘ একটি মই একটি দেওয়ালে ভূমির সাথে 60° কোণে হেলান দেওয়া আছে।
Chapter: Trigonometric Ratio
▼
Sylhet Board 2022
CQ6
Creative
Stem:
From a point 20 m away from the base of a tower, the angle of elevation of the top is 60°.
উদ্দীপক:
একটি মিনারের পাদদেশ থেকে 20 মি. দূরের একটি বিন্দু থেকে চূড়ার উন্নতি কোণ 60°।
Chapter: Trigonometric Ratio
▼
Barisal Board 2021
CQ5
Creative
Stem:
From the top of a 40 m building, the angle of depression to a car on the ground is 30°.
উদ্দীপক:
40 মি উঁচু ভবনের শীর্ষ থেকে মাটিতে একটি গাড়ির অবনতি কোণ 30°।
Chapter: Trigonometric Ratio
▼
Chittagong Board 2021
CQ6
Creative
Stem:
A tree casts a shadow of \(20\sqrt{3}\) m when the angle of elevation of the sun is 30°.
উদ্দীপক:
সূর্যের উন্নতি কোণ 30° হলে একটি গাছের ছায়ার দৈর্ঘ্য \(20\sqrt{3}\) মি।
Chapter: Trigonometric Ratio
▼
Comilla Board 2021
CQ5
Creative
Stem:
From the top of a 40 m building, the angle of depression to a car on the ground is 30°.
উদ্দীপক:
40 মি উঁচু ভবনের শীর্ষ থেকে মাটিতে একটি গাড়ির অবনতি কোণ 30°।
Chapter: Trigonometric Ratio
▼
Dhaka Board 2021
CQ5
Creative
Stem:
From the top of a 40 m building, the angle of depression to a car on the ground is 30°.
উদ্দীপক:
40 মি উঁচু ভবনের শীর্ষ থেকে মাটিতে একটি গাড়ির অবনতি কোণ 30°।
Chapter: Trigonometric Ratio
▼
Dinajpur Board 2021
CQ5
Creative
Stem:
From the top of a 40 m building, the angle of depression to a car on the ground is 30°.
উদ্দীপক:
40 মি উঁচু ভবনের শীর্ষ থেকে মাটিতে একটি গাড়ির অবনতি কোণ 30°।
Chapter: Trigonometric Ratio
▼
Jessore Board 2021
CQ5
Creative
Stem:
From the top of a 40 m building, the angle of depression to a car on the ground is 30°.
উদ্দীপক:
40 মি উঁচু ভবনের শীর্ষ থেকে মাটিতে একটি গাড়ির অবনতি কোণ 30°।
Chapter: Trigonometric Ratio
▼
Mymensingh Board 2021
CQ5
Creative
Stem:
From the top of a 40 m building, the angle of depression to a car on the ground is 30°.
উদ্দীপক:
40 মি উঁচু ভবনের শীর্ষ থেকে মাটিতে একটি গাড়ির অবনতি কোণ 30°।
Chapter: Trigonometric Ratio
▼
Rajshahi Board 2021
CQ5
Creative
Stem:
A ladder 10 m long leans against a wall making an angle of 60° with the ground.
উদ্দীপক:
10 মি দীর্ঘ একটি মই একটি দেওয়ালে 60° কোণে ঠেসে রাখা আছে।
Chapter: Trigonometric Ratio
▼
Sylhet Board 2021
CQ5
Creative
Stem:
From the top of a 40 m building, the angle of depression to a car on the ground is 30°.
উদ্দীপক:
40 মি উঁচু ভবনের শীর্ষ থেকে মাটিতে একটি গাড়ির অবনতি কোণ 30°।
Chapter: Trigonometric Ratio
▼
Barisal Board 2020
CQ5
Creative
Stem:
From a point 50 m away from the base of a tower, the angle of elevation of the top is 60°.
উদ্দীপক:
একটি মিনারের পাদদেশ থেকে 50 মি দূরের একটি বিন্দু থেকে চূড়ার উন্নতি কোণ 60°।
Chapter: Trigonometric Ratio
▼
Chittagong Board 2020
CQ5
Creative
Stem:
A 12 m ladder leans against a wall making a 60° angle with the ground.
উদ্দীপক:
12 মি লম্বা একটি মই একটি দেওয়ালে ভূমির সাথে 60° কোণে হেলান দেওয়া আছে।
Chapter: Trigonometric Ratio
▼
Comilla Board 2020
CQ5
Creative
Stem:
From a point 50 m away from the base of a tower, the angle of elevation of the top is 60°.
উদ্দীপক:
একটি মিনারের পাদদেশ থেকে 50 মি দূরের একটি বিন্দু থেকে চূড়ার উন্নতি কোণ 60°।
Chapter: Trigonometric Ratio
▼
Dhaka Board 2020
CQ5
Creative
Stem:
From a point 50 m away from the base of a tower, the angle of elevation of the top is 60°.
উদ্দীপক:
একটি মিনারের পাদদেশ থেকে 50 মি দূরের একটি বিন্দু থেকে চূড়ার উন্নতি কোণ 60°।
Chapter: Trigonometric Ratio
▼
Dinajpur Board 2020
CQ5
Creative
Stem:
From a point 50 m away from the base of a tower, the angle of elevation of the top is 60°.
উদ্দীপক:
একটি মিনারের পাদদেশ থেকে 50 মি দূরের একটি বিন্দু থেকে চূড়ার উন্নতি কোণ 60°।
Chapter: Trigonometric Ratio
▼
Jessore Board 2020
CQ5
Creative
Stem:
From a point 50 m away from the base of a tower, the angle of elevation of the top is 60°.
উদ্দীপক:
একটি মিনারের পাদদেশ থেকে 50 মি দূরের একটি বিন্দু থেকে চূড়ার উন্নতি কোণ 60°।
Chapter: Trigonometric Ratio
▼
Mymensingh Board 2020
CQ5
Creative
Stem:
From a point 50 m away from the base of a tower, the angle of elevation of the top is 60°.
উদ্দীপক:
একটি মিনারের পাদদেশ থেকে 50 মি দূরের একটি বিন্দু থেকে চূড়ার উন্নতি কোণ 60°।
Chapter: Trigonometric Ratio
▼
Rajshahi Board 2020
CQ5
Creative
Stem:
A kite is flying at a height of 40 m. The string makes an angle of 30° with the ground.
উদ্দীপক:
একটি ঘুড়ি 40 মি উচ্চতায় উড়ছে। সুতাটি ভূমির সাথে 30° কোণ তৈরি করে।
Chapter: Trigonometric Ratio
▼
Sylhet Board 2020
CQ5
Creative
Stem:
From a point 50 m away from the base of a tower, the angle of elevation of the top is 60°.
উদ্দীপক:
একটি মিনারের পাদদেশ থেকে 50 মি দূরের একটি বিন্দু থেকে চূড়ার উন্নতি কোণ 60°।
Chapter: Trigonometric Ratio
▼
Multiple Choice Questions (MCQ)
Barisal Board 2025
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60° = ?\)
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Barisal Board 2025
Q21
MCQ
If \(\sin\theta = \frac{5}{13}\), then \(\cos\theta = ?\) (\(\theta\) acute)
\(\sin\theta = \frac{5}{13}\) হলে \(\cos\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{12}{13}\)
খ.
\(\frac{8}{13}\)
গ.
\(\frac{5}{12}\)
ঘ.
\(\frac{13}{12}\)
Barisal Board 2025
Q22
MCQ
\(\sec 0° = ?\)
\(\sec 0° = ?\)
▼
ক.
0
খ.
1
গ.
Undefined
ঘ.
\(\infty\)
Barisal Board 2025
Q23
MCQ
\(\tan 45° \times \cot 45° = ?\)
\(\tan 45° \times \cot 45° = ?\)
▼
ক.
0
খ.
1
গ.
2
ঘ.
Undefined
Chittagong Board 2025
Q19
MCQ
\(\cos 45° = ?\)
\(\cos 45° = ?\)
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{\sqrt{2}}{2}\)
গ.
\(\frac{\sqrt{3}}{2}\)
ঘ.
1
Chittagong Board 2025
Q20
MCQ
If \(\cos\theta = \frac{4}{5}\), then \(\tan\theta = ?\) (\(\theta\) acute)
\(\cos\theta = \frac{4}{5}\) হলে \(\tan\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{4}\)
খ.
\(\frac{4}{3}\)
গ.
\(\frac{3}{5}\)
ঘ.
\(\frac{5}{4}\)
Chittagong Board 2025
Q21
MCQ
\(\sin(90° - \theta) = ?\)
\(\sin(90° - \theta) = ?\)
▼
ক.
\(\sin\theta\)
খ.
\(\cos\theta\)
গ.
\(\tan\theta\)
ঘ.
\(-\sin\theta\)
Chittagong Board 2025
Q22
MCQ
\(\cosec 30° = ?\)
\(\cosec 30° = ?\)
▼
ক.
1
খ.
\(\frac{2}{\sqrt{3}}\)
গ.
2
ঘ.
\(\sqrt{2}\)
Comilla Board 2025
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60° = ?\)
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Comilla Board 2025
Q21
MCQ
If \(\sin\theta = \frac{5}{13}\), then \(\cos\theta = ?\) (\(\theta\) acute)
\(\sin\theta = \frac{5}{13}\) হলে \(\cos\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{12}{13}\)
খ.
\(\frac{8}{13}\)
গ.
\(\frac{5}{12}\)
ঘ.
\(\frac{13}{12}\)
Comilla Board 2025
Q22
MCQ
\(\sec 0° = ?\)
\(\sec 0° = ?\)
▼
ক.
0
খ.
1
গ.
Undefined
ঘ.
\(\infty\)
Comilla Board 2025
Q23
MCQ
\(\tan 45° \times \cot 45° = ?\)
\(\tan 45° \times \cot 45° = ?\)
▼
ক.
0
খ.
1
গ.
2
ঘ.
Undefined
Dhaka Board 2025
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60° = ?\)
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Dhaka Board 2025
Q21
MCQ
If \(\sin\theta = \frac{5}{13}\), then \(\cos\theta = ?\) (\(\theta\) acute)
\(\sin\theta = \frac{5}{13}\) হলে \(\cos\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{12}{13}\)
খ.
\(\frac{8}{13}\)
গ.
\(\frac{5}{12}\)
ঘ.
\(\frac{13}{12}\)
Dhaka Board 2025
Q22
MCQ
\(\sec 0° = ?\)
\(\sec 0° = ?\)
▼
ক.
0
খ.
1
গ.
Undefined
ঘ.
\(\infty\)
Dhaka Board 2025
Q23
MCQ
\(\tan 45° \times \cot 45° = ?\)
\(\tan 45° \times \cot 45° = ?\)
▼
ক.
0
খ.
1
গ.
2
ঘ.
Undefined
Dinajpur Board 2025
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60° = ?\)
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Dinajpur Board 2025
Q21
MCQ
If \(\sin\theta = \frac{5}{13}\), then \(\cos\theta = ?\) (\(\theta\) acute)
\(\sin\theta = \frac{5}{13}\) হলে \(\cos\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{12}{13}\)
খ.
\(\frac{8}{13}\)
গ.
\(\frac{5}{12}\)
ঘ.
\(\frac{13}{12}\)
Dinajpur Board 2025
Q22
MCQ
\(\sec 0° = ?\)
\(\sec 0° = ?\)
▼
ক.
0
খ.
1
গ.
Undefined
ঘ.
\(\infty\)
Dinajpur Board 2025
Q23
MCQ
\(\tan 45° \times \cot 45° = ?\)
\(\tan 45° \times \cot 45° = ?\)
▼
ক.
0
খ.
1
গ.
2
ঘ.
Undefined
Jessore Board 2025
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60° = ?\)
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Jessore Board 2025
Q21
MCQ
If \(\sin\theta = \frac{5}{13}\), then \(\cos\theta = ?\) (\(\theta\) acute)
\(\sin\theta = \frac{5}{13}\) হলে \(\cos\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{12}{13}\)
খ.
\(\frac{8}{13}\)
গ.
\(\frac{5}{12}\)
ঘ.
\(\frac{13}{12}\)
Jessore Board 2025
Q22
MCQ
\(\sec 0° = ?\)
\(\sec 0° = ?\)
▼
ক.
0
খ.
1
গ.
Undefined
ঘ.
\(\infty\)
Jessore Board 2025
Q23
MCQ
\(\tan 45° \times \cot 45° = ?\)
\(\tan 45° \times \cot 45° = ?\)
▼
ক.
0
খ.
1
গ.
2
ঘ.
Undefined
Mymensingh Board 2025
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60° = ?\)
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Mymensingh Board 2025
Q21
MCQ
If \(\sin\theta = \frac{5}{13}\), then \(\cos\theta = ?\) (\(\theta\) acute)
\(\sin\theta = \frac{5}{13}\) হলে \(\cos\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{12}{13}\)
খ.
\(\frac{8}{13}\)
গ.
\(\frac{5}{12}\)
ঘ.
\(\frac{13}{12}\)
Mymensingh Board 2025
Q22
MCQ
\(\sec 0° = ?\)
\(\sec 0° = ?\)
▼
ক.
0
খ.
1
গ.
Undefined
ঘ.
\(\infty\)
Mymensingh Board 2025
Q23
MCQ
\(\tan 45° \times \cot 45° = ?\)
\(\tan 45° \times \cot 45° = ?\)
▼
ক.
0
খ.
1
গ.
2
ঘ.
Undefined
Rajshahi Board 2025
Q19
MCQ
\(\sin 0° + \cos 0° + \tan 0° = ?\)
\(\sin 0° + \cos 0° + \tan 0° = ?\)
▼
ক.
0
খ.
1
গ.
2
ঘ.
3
Rajshahi Board 2025
Q20
MCQ
\(\sin 90° \times \cos 90° = ?\)
\(\sin 90° \times \cos 90° = ?\)
▼
ক.
0
খ.
1
গ.
\(\frac{1}{2}\)
ঘ.
Undefined
Rajshahi Board 2025
Q21
MCQ
\(1 + \tan^2\theta = ?\)
\(1 + \tan^2\theta = ?\)
▼
ক.
\(\sec^2\theta\)
খ.
\(\csc^2\theta\)
গ.
\(\cos^2\theta\)
ঘ.
\(\sin^2\theta\)
Rajshahi Board 2025
Q22
MCQ
\(\tan 60° = ?\)
\(\tan 60° = ?\)
▼
ক.
\(\frac{1}{\sqrt{3}}\)
খ.
1
গ.
\(\sqrt{3}\)
ঘ.
2
Sylhet Board 2025
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60° = ?\)
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Sylhet Board 2025
Q21
MCQ
If \(\sin\theta = \frac{5}{13}\), then \(\cos\theta = ?\) (\(\theta\) acute)
\(\sin\theta = \frac{5}{13}\) হলে \(\cos\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{12}{13}\)
খ.
\(\frac{8}{13}\)
গ.
\(\frac{5}{12}\)
ঘ.
\(\frac{13}{12}\)
Sylhet Board 2025
Q22
MCQ
\(\sec 0° = ?\)
\(\sec 0° = ?\)
▼
ক.
0
খ.
1
গ.
Undefined
ঘ.
\(\infty\)
Sylhet Board 2025
Q23
MCQ
\(\tan 45° \times \cot 45° = ?\)
\(\tan 45° \times \cot 45° = ?\)
▼
ক.
0
খ.
1
গ.
2
ঘ.
Undefined
Barisal Board 2024
Q16
MCQ
\(\sin(90°-\theta) = ?\)
▼
ক.
\(\sin\theta\)
খ.
\(\cos\theta\)
গ.
\(-\cos\theta\)
ঘ.
\(-\sin\theta\)
Barisal Board 2024
Q17
MCQ
In a right triangle with legs 6 and 8, hypotenuse =
▼
ক.
10
খ.
12
গ.
14
ঘ.
6
Barisal Board 2024
Q26
MCQ
\(\cos(90°-\theta) = ?\)
▼
ক.
\(\cos\theta\)
খ.
\(-\cos\theta\)
গ.
\(\sin\theta\)
ঘ.
\(-\sin\theta\)
Chittagong Board 2024
Q14
MCQ
\(\sin 90° = ?\)
▼
ক.
0
খ.
1/2
গ.
√2/2
ঘ.
1
Chittagong Board 2024
Q15
MCQ
\(\cos 0° = ?\)
▼
ক.
0
খ.
1/2
গ.
1
ঘ.
√3/2
Chittagong Board 2024
Q21
MCQ
\(\sec 60° = ?\)
▼
ক.
1
খ.
√2
গ.
2
ঘ.
√3
Chittagong Board 2024
Q29
MCQ
\(\cot\theta \cdot \tan\theta = ?\)
▼
ক.
0
খ.
1
গ.
\(\sec\theta\)
ঘ.
\(\csc\theta\)
Comilla Board 2024
Q16
MCQ
\(\sin 45° = ?\)
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{\sqrt{3}}{2}\)
গ.
\(\frac{1}{\sqrt{2}}\)
ঘ.
1
Comilla Board 2024
Q17
MCQ
\(1+\cot^2\theta = ?\)
▼
ক.
\(\tan^2\theta\)
খ.
\(\csc^2\theta\)
গ.
\(\sec^2\theta\)
ঘ.
1
Comilla Board 2024
Q21
MCQ
\(\text{cosec}\,90° = ?\)
▼
ক.
0
খ.
1
গ.
2
ঘ.
undefined
Dhaka Board 2024
Q21
MCQ
If \(\tan\theta=\frac{3}{4}\), then \(\sin\theta=\)?
\(\tan\theta=\frac{3}{4}\) হলে \(\sin\theta=\)?
▼
ক.
\(\frac{4}{5}\)
খ.
\(\frac{3}{5}\)
গ.
\(\frac{4}{3}\)
ঘ.
\(\frac{5}{3}\)
Dhaka Board 2024
Q22
MCQ
\(\sin^2\theta + \cos^2\theta = ?\)
\(\sin^2\theta + \cos^2\theta\) এর মান:
▼
ক.
1
খ.
0
গ.
\(\sin\theta\)
ঘ.
2
Dhaka Board 2024
Q23
MCQ
\(\cos 60° = ?\)
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{\sqrt{3}}{2}\)
গ.
\(\sqrt{3}\)
ঘ.
1
Dinajpur Board 2024
Q15
MCQ
\(\tan 0° = ?\)
▼
ক.
0
খ.
1
গ.
undefined
ঘ.
∞
Dinajpur Board 2024
Q16
MCQ
If \(\sin\theta=1\), then \(\theta=?\)
▼
ক.
0°
খ.
45°
গ.
60°
ঘ.
90°
Dinajpur Board 2024
Q20
MCQ
\(2\sin\theta\cos\theta = ?\)
▼
ক.
\(\cos 2\theta\)
খ.
\(\sin 2\theta\)
গ.
\(\sin^2\theta\)
ঘ.
\(\tan\theta\)
Dinajpur Board 2024
Q27
MCQ
\(1-\cos^2\theta = ?\)
▼
ক.
\(\sin\theta\)
খ.
\(\sin^2\theta\)
গ.
\(\tan^2\theta\)
ঘ.
\(\cos^2\theta\)
Jessore Board 2024
Q14
MCQ
\(\sin^2 30°+\cos^2 30° = ?\)
▼
ক.
1/2
খ.
3/4
গ.
1
ঘ.
2
Jessore Board 2024
Q15
MCQ
\(\tan\theta=\frac{\sin\theta}{\cos\theta}\) is:
▼
ক.
Sometimes true
খ.
Always false
গ.
Always true
ঘ.
True only for acute angles
Jessore Board 2024
Q28
MCQ
\(1+\tan^2\theta = ?\)
▼
ক.
\(\csc^2\theta\)
খ.
\(\sec^2\theta\)
গ.
\(\cot^2\theta\)
ঘ.
1
Mymensingh Board 2024
Q16
MCQ
\(\text{cosec}\,30° = ?\)
▼
ক.
1
খ.
2
গ.
√2
ঘ.
√3
Mymensingh Board 2024
Q17
MCQ
In right triangle, if \(\sin A=\frac{5}{13}\), then \(\cos A=?\)
▼
ক.
\(\frac{12}{13}\)
খ.
\(\frac{5}{12}\)
গ.
\(\frac{13}{5}\)
ঘ.
\(\frac{13}{12}\)
Mymensingh Board 2024
Q21
MCQ
\(\tan 30° = ?\)
▼
ক.
\(\frac{1}{\sqrt{3}}\)
খ.
\(\sqrt{3}\)
গ.
\(\frac{\sqrt{3}}{2}\)
ঘ.
\(\frac{1}{2}\)
Mymensingh Board 2024
Q27
MCQ
\(\text{cosec}^2\theta-\cot^2\theta = ?\)
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\csc\theta\)
Rajshahi Board 2024
Q16
MCQ
\(\sin 30° = ?\)
▼
ক.
\(\frac{\sqrt{3}}{2}\)
খ.
\(\frac{1}{2}\)
গ.
\(1\)
ঘ.
\(\frac{1}{\sqrt{2}}\)
Rajshahi Board 2024
Q17
MCQ
\(\tan 45° = ?\)
▼
ক.
0
খ.
\(\frac{1}{\sqrt{2}}\)
গ.
\(\sqrt{3}\)
ঘ.
1
Rajshahi Board 2024
Q18
MCQ
If \(\cos\theta = \frac{5}{13}\), find \(\tan\theta\).
▼
ক.
\(\frac{5}{12}\)
খ.
\(\frac{12}{5}\)
গ.
\(\frac{12}{13}\)
ঘ.
\(\frac{13}{5}\)
Rajshahi Board 2024
Q27
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
▼
ক.
0
খ.
1
গ.
\(\sec\theta\)
ঘ.
2
Sylhet Board 2024
Q15
MCQ
\(\cos 30° = ?\)
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{\sqrt{3}}{2}\)
গ.
\(\frac{1}{\sqrt{2}}\)
ঘ.
\(\sqrt{3}\)
Sylhet Board 2024
Q16
MCQ
If angle of elevation = angle of depression, then:
▼
ক.
Observer above object
খ.
Object above observer
গ.
Same height
ঘ.
Object at horizon
Sylhet Board 2024
Q20
MCQ
\(\sin 0° = ?\)
▼
ক.
0
খ.
1
গ.
−1
ঘ.
undefined
Sylhet Board 2024
Q30
MCQ
\(\text{cosec}^2\theta-\cot^2\theta = ?\)
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\csc\theta\)
Barisal Board 2023
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60°\) এর মান কত?
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\frac{\sqrt{3}}{2}\)
Barisal Board 2023
Q21
MCQ
\(\tan 45° \times \cos 45° = ?\)
\(\tan 45° \times \cos 45°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{2}}\)
খ.
1
গ.
\(\sqrt{2}\)
ঘ.
\(\frac{1}{2}\)
Barisal Board 2023
Q22
MCQ
If \(\sin\theta = \frac{4}{5}\), what is \(\cos\theta\)? (acute angle)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta\) = ? (সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{3}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{1}{5}\)
Chittagong Board 2023
Q20
MCQ
\(\tan 60° = ?\)
\(\tan 60°\) এর মান:
▼
ক.
\(\frac{1}{\sqrt{3}}\)
খ.
1
গ.
\(\sqrt{3}\)
ঘ.
2
Chittagong Board 2023
Q21
MCQ
\(\sin 0° + \cos 0° = ?\)
\(\sin 0° + \cos 0°\) এর মান:
▼
ক.
0
খ.
1
গ.
2
ঘ.
undefined
Chittagong Board 2023
Q22
MCQ
\(\cot 45° = ?\)
\(\cot 45°\) এর মান:
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{2}\)
Comilla Board 2023
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60°\) এর মান কত?
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\frac{\sqrt{3}}{2}\)
Comilla Board 2023
Q21
MCQ
\(\tan 45° \times \cos 45° = ?\)
\(\tan 45° \times \cos 45°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{2}}\)
খ.
1
গ.
\(\sqrt{2}\)
ঘ.
\(\frac{1}{2}\)
Comilla Board 2023
Q22
MCQ
If \(\sin\theta = \frac{4}{5}\), what is \(\cos\theta\)? (acute angle)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta\) = ? (সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{3}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{1}{5}\)
Dhaka Board 2023
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60°\) এর মান কত?
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\frac{\sqrt{3}}{2}\)
Dhaka Board 2023
Q21
MCQ
\(\tan 45° \times \cos 45° = ?\)
\(\tan 45° \times \cos 45°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{2}}\)
খ.
1
গ.
\(\sqrt{2}\)
ঘ.
\(\frac{1}{2}\)
Dhaka Board 2023
Q22
MCQ
If \(\sin\theta = \frac{4}{5}\), what is \(\cos\theta\)? (acute angle)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta\) = ? (সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{3}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{1}{5}\)
Dinajpur Board 2023
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60°\) এর মান কত?
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\frac{\sqrt{3}}{2}\)
Dinajpur Board 2023
Q21
MCQ
\(\tan 45° \times \cos 45° = ?\)
\(\tan 45° \times \cos 45°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{2}}\)
খ.
1
গ.
\(\sqrt{2}\)
ঘ.
\(\frac{1}{2}\)
Dinajpur Board 2023
Q22
MCQ
If \(\sin\theta = \frac{4}{5}\), what is \(\cos\theta\)? (acute angle)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta\) = ? (সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{3}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{1}{5}\)
Jessore Board 2023
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60°\) এর মান কত?
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\frac{\sqrt{3}}{2}\)
Jessore Board 2023
Q21
MCQ
\(\tan 45° \times \cos 45° = ?\)
\(\tan 45° \times \cos 45°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{2}}\)
খ.
1
গ.
\(\sqrt{2}\)
ঘ.
\(\frac{1}{2}\)
Jessore Board 2023
Q22
MCQ
If \(\sin\theta = \frac{4}{5}\), what is \(\cos\theta\)? (acute angle)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta\) = ? (সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{3}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{1}{5}\)
Mymensingh Board 2023
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60°\) এর মান কত?
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\frac{\sqrt{3}}{2}\)
Mymensingh Board 2023
Q21
MCQ
\(\tan 45° \times \cos 45° = ?\)
\(\tan 45° \times \cos 45°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{2}}\)
খ.
1
গ.
\(\sqrt{2}\)
ঘ.
\(\frac{1}{2}\)
Mymensingh Board 2023
Q22
MCQ
If \(\sin\theta = \frac{4}{5}\), what is \(\cos\theta\)? (acute angle)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta\) = ? (সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{3}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{1}{5}\)
Rajshahi Board 2023
Q20
MCQ
\(\sec 0° = ?\)
\(\sec 0°\) এর মান কত?
▼
ক.
0
খ.
1
গ.
\(\infty\)
ঘ.
undefined
Rajshahi Board 2023
Q21
MCQ
If \(\cos\theta = \frac{12}{13}\), then \(\tan\theta = ?\) (acute angle)
\(\cos\theta = \frac{12}{13}\) হলে \(\tan\theta = ?\) (সূক্ষ্মকোণ)
▼
ক.
\(\frac{5}{12}\)
খ.
\(\frac{5}{13}\)
গ.
\(\frac{12}{5}\)
ঘ.
\(\frac{13}{12}\)
Rajshahi Board 2023
Q22
MCQ
\(1 + \tan^2\theta = ?\)
\(1 + \tan^2\theta\) এর মান:
▼
ক.
\(\sin^2\theta\)
খ.
\(\cos^2\theta\)
গ.
\(\sec^2\theta\)
ঘ.
\(\csc^2\theta\)
Sylhet Board 2023
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60°\) এর মান কত?
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\frac{\sqrt{3}}{2}\)
Sylhet Board 2023
Q21
MCQ
\(\tan 45° \times \cos 45° = ?\)
\(\tan 45° \times \cos 45°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{2}}\)
খ.
1
গ.
\(\sqrt{2}\)
ঘ.
\(\frac{1}{2}\)
Sylhet Board 2023
Q22
MCQ
If \(\sin\theta = \frac{4}{5}\), what is \(\cos\theta\)? (acute angle)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta\) = ? (সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{3}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{1}{5}\)
Barisal Board 2022
Q18
MCQ
\(\sin 30° = ?\)
\(\sin 30°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{2}}\)
খ.
\(\frac{1}{2}\)
গ.
\(\frac{\sqrt{3}}{2}\)
ঘ.
1
Barisal Board 2022
Q19
MCQ
If \(\tan \theta = 1\) and \(0° < \theta < 90°\), then \(\theta = ?\)
\(\tan \theta = 1\) এবং \(0° < \theta < 90°\) হলে \(\theta\) = ?
▼
ক.
30°
খ.
45°
গ.
60°
ঘ.
90°
Barisal Board 2022
Q20
MCQ
\(\sin^2 \theta + \cos^2 \theta = ?\)
\(\sin^2 \theta + \cos^2 \theta\) এর মান কত?
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\tan^2 \theta\)
Barisal Board 2022
Q30
MCQ
\(\cos 0° + \sin 90° = ?\)
\(\cos 0° + \sin 90°\) = ?
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\frac{1}{2}\)
Chittagong Board 2022
Q18
MCQ
\(\tan 60° = ?\)
\(\tan 60°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{3}}\)
খ.
1
গ.
\(\sqrt{3}\)
ঘ.
2
Chittagong Board 2022
Q19
MCQ
\(1 + \tan^2 \theta = ?\)
\(1 + \tan^2 \theta\) = ?
▼
ক.
\(\sin^2 \theta\)
খ.
\(\cos^2 \theta\)
গ.
\(\sec^2 \theta\)
ঘ.
\(\csc^2 \theta\)
Chittagong Board 2022
Q20
MCQ
If \(\cos \theta = \frac{12}{13}\), find \(\sin \theta\) (\(\theta\) acute).
\(\cos \theta = \frac{12}{13}\) হলে \(\sin \theta\) = ? (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{5}{13}\)
খ.
\(\frac{5}{12}\)
গ.
\(\frac{12}{5}\)
ঘ.
\(\frac{1}{13}\)
Chittagong Board 2022
Q30
MCQ
\(\sin 90° - \cos 90° = ?\)
\(\sin 90° - \cos 90°\) = ?
▼
ক.
0
খ.
1
গ.
2
ঘ.
-1
Comilla Board 2022
Q18
MCQ
\(\sin 30° = ?\)
\(\sin 30°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{2}}\)
খ.
\(\frac{1}{2}\)
গ.
\(\frac{\sqrt{3}}{2}\)
ঘ.
1
Comilla Board 2022
Q19
MCQ
If \(\tan \theta = 1\) and \(0° < \theta < 90°\), then \(\theta = ?\)
\(\tan \theta = 1\) এবং \(0° < \theta < 90°\) হলে \(\theta\) = ?
▼
ক.
30°
খ.
45°
গ.
60°
ঘ.
90°
Comilla Board 2022
Q20
MCQ
\(\sin^2 \theta + \cos^2 \theta = ?\)
\(\sin^2 \theta + \cos^2 \theta\) এর মান কত?
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\tan^2 \theta\)
Comilla Board 2022
Q30
MCQ
\(\cos 0° + \sin 90° = ?\)
\(\cos 0° + \sin 90°\) = ?
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\frac{1}{2}\)
Dhaka Board 2022
Q18
MCQ
\(\sin 30° = ?\)
\(\sin 30°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{2}}\)
খ.
\(\frac{1}{2}\)
গ.
\(\frac{\sqrt{3}}{2}\)
ঘ.
1
Dhaka Board 2022
Q19
MCQ
If \(\tan \theta = 1\) and \(0° < \theta < 90°\), then \(\theta = ?\)
\(\tan \theta = 1\) এবং \(0° < \theta < 90°\) হলে \(\theta\) = ?
▼
ক.
30°
খ.
45°
গ.
60°
ঘ.
90°
Dhaka Board 2022
Q20
MCQ
\(\sin^2 \theta + \cos^2 \theta = ?\)
\(\sin^2 \theta + \cos^2 \theta\) এর মান কত?
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\tan^2 \theta\)
Dhaka Board 2022
Q30
MCQ
\(\cos 0° + \sin 90° = ?\)
\(\cos 0° + \sin 90°\) = ?
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\frac{1}{2}\)
Dinajpur Board 2022
Q18
MCQ
\(\sin 30° = ?\)
\(\sin 30°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{2}}\)
খ.
\(\frac{1}{2}\)
গ.
\(\frac{\sqrt{3}}{2}\)
ঘ.
1
Dinajpur Board 2022
Q19
MCQ
If \(\tan \theta = 1\) and \(0° < \theta < 90°\), then \(\theta = ?\)
\(\tan \theta = 1\) এবং \(0° < \theta < 90°\) হলে \(\theta\) = ?
▼
ক.
30°
খ.
45°
গ.
60°
ঘ.
90°
Dinajpur Board 2022
Q20
MCQ
\(\sin^2 \theta + \cos^2 \theta = ?\)
\(\sin^2 \theta + \cos^2 \theta\) এর মান কত?
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\tan^2 \theta\)
Dinajpur Board 2022
Q30
MCQ
\(\cos 0° + \sin 90° = ?\)
\(\cos 0° + \sin 90°\) = ?
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\frac{1}{2}\)
Jessore Board 2022
Q18
MCQ
\(\sin 30° = ?\)
\(\sin 30°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{2}}\)
খ.
\(\frac{1}{2}\)
গ.
\(\frac{\sqrt{3}}{2}\)
ঘ.
1
Jessore Board 2022
Q19
MCQ
If \(\tan \theta = 1\) and \(0° < \theta < 90°\), then \(\theta = ?\)
\(\tan \theta = 1\) এবং \(0° < \theta < 90°\) হলে \(\theta\) = ?
▼
ক.
30°
খ.
45°
গ.
60°
ঘ.
90°
Jessore Board 2022
Q20
MCQ
\(\sin^2 \theta + \cos^2 \theta = ?\)
\(\sin^2 \theta + \cos^2 \theta\) এর মান কত?
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\tan^2 \theta\)
Jessore Board 2022
Q30
MCQ
\(\cos 0° + \sin 90° = ?\)
\(\cos 0° + \sin 90°\) = ?
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\frac{1}{2}\)
Mymensingh Board 2022
Q18
MCQ
\(\sin 30° = ?\)
\(\sin 30°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{2}}\)
খ.
\(\frac{1}{2}\)
গ.
\(\frac{\sqrt{3}}{2}\)
ঘ.
1
Mymensingh Board 2022
Q19
MCQ
If \(\tan \theta = 1\) and \(0° < \theta < 90°\), then \(\theta = ?\)
\(\tan \theta = 1\) এবং \(0° < \theta < 90°\) হলে \(\theta\) = ?
▼
ক.
30°
খ.
45°
গ.
60°
ঘ.
90°
Mymensingh Board 2022
Q20
MCQ
\(\sin^2 \theta + \cos^2 \theta = ?\)
\(\sin^2 \theta + \cos^2 \theta\) এর মান কত?
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\tan^2 \theta\)
Mymensingh Board 2022
Q30
MCQ
\(\cos 0° + \sin 90° = ?\)
\(\cos 0° + \sin 90°\) = ?
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\frac{1}{2}\)
Rajshahi Board 2022
Q18
MCQ
\(\cos 60° = ?\)
\(\cos 60°\) এর মান কত?
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{\sqrt{3}}{2}\)
গ.
\(\frac{1}{\sqrt{2}}\)
ঘ.
1
Rajshahi Board 2022
Q19
MCQ
\(\sec \theta = ?\)
\(\sec \theta\) = ?
▼
ক.
\(\frac{1}{\sin \theta}\)
খ.
\(\frac{1}{\cos \theta}\)
গ.
\(\frac{1}{\tan \theta}\)
ঘ.
\(\sin \theta \cdot \cos \theta\)
Rajshahi Board 2022
Q20
MCQ
If \(\sin \theta = \frac{3}{5}\), find \(\cos \theta\) (\(\theta\) is acute).
\(\sin \theta = \frac{3}{5}\) হলে \(\cos \theta\) নির্ণয় করো (\(\theta\) সূক্ষ্মকোণ)।
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{3}{4}\)
ঘ.
\(\frac{5}{4}\)
Rajshahi Board 2022
Q30
MCQ
\(\tan 45° + \cos 0° = ?\)
\(\tan 45° + \cos 0°\) = ?
▼
ক.
0
খ.
1
গ.
2
ঘ.
3
Sylhet Board 2022
Q18
MCQ
\(\sin 30° = ?\)
\(\sin 30°\) এর মান কত?
▼
ক.
\(\frac{1}{\sqrt{2}}\)
খ.
\(\frac{1}{2}\)
গ.
\(\frac{\sqrt{3}}{2}\)
ঘ.
1
Sylhet Board 2022
Q19
MCQ
If \(\tan \theta = 1\) and \(0° < \theta < 90°\), then \(\theta = ?\)
\(\tan \theta = 1\) এবং \(0° < \theta < 90°\) হলে \(\theta\) = ?
▼
ক.
30°
খ.
45°
গ.
60°
ঘ.
90°
Sylhet Board 2022
Q20
MCQ
\(\sin^2 \theta + \cos^2 \theta = ?\)
\(\sin^2 \theta + \cos^2 \theta\) এর মান কত?
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\tan^2 \theta\)
Sylhet Board 2022
Q30
MCQ
\(\cos 0° + \sin 90° = ?\)
\(\cos 0° + \sin 90°\) = ?
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\frac{1}{2}\)
Barisal Board 2021
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60°\) এর মান কত?
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Barisal Board 2021
Q21
MCQ
\(\tan 45° \times \cos 45° = ?\)
\(\tan 45° \times \cos 45°\) এর মান:
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{1}{\sqrt{2}}\)
গ.
1
ঘ.
\(\sqrt{2}\)
Barisal Board 2021
Q22
MCQ
If \(\sin\theta = \frac{4}{5}\), then \(\cos\theta = ?\) (first quadrant)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta = ?\) (প্রথম চতুর্ভাগে)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{3}{4}\)
Barisal Board 2021
Q23
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
\(\sec^2\theta - \tan^2\theta\) এর মান:
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\sin^2\theta\)
Chittagong Board 2021
Q20
MCQ
\(\tan 60° = ?\)
\(\tan 60°\) এর মান:
▼
ক.
1
খ.
\(\sqrt{2}\)
গ.
\(\sqrt{3}\)
ঘ.
2
Chittagong Board 2021
Q21
MCQ
\(\sin(90° - \theta) = ?\)
\(\sin(90° - \theta)\) এর মান:
▼
ক.
\(\sin\theta\)
খ.
\(\cos\theta\)
গ.
\(\tan\theta\)
ঘ.
\(-\sin\theta\)
Chittagong Board 2021
Q22
MCQ
If \(\tan\theta = 1\), then \(\theta = ?\) (acute angle)
\(\tan\theta = 1\) হলে \(\theta = ?\) (সূক্ষ্মকোণ)
▼
ক.
30°
খ.
45°
গ.
60°
ঘ.
90°
Chittagong Board 2021
Q23
MCQ
\(\frac{\sin 30°}{\cos 30°} = ?\)
\(\frac{\sin 30°}{\cos 30°}\) এর মান:
▼
ক.
\(\frac{1}{\sqrt{3}}\)
খ.
\(\sqrt{3}\)
গ.
1
ঘ.
\(\frac{\sqrt{3}}{2}\)
Comilla Board 2021
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60°\) এর মান কত?
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Comilla Board 2021
Q21
MCQ
\(\tan 45° \times \cos 45° = ?\)
\(\tan 45° \times \cos 45°\) এর মান:
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{1}{\sqrt{2}}\)
গ.
1
ঘ.
\(\sqrt{2}\)
Comilla Board 2021
Q22
MCQ
If \(\sin\theta = \frac{4}{5}\), then \(\cos\theta = ?\) (first quadrant)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta = ?\) (প্রথম চতুর্ভাগে)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{3}{4}\)
Comilla Board 2021
Q23
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
\(\sec^2\theta - \tan^2\theta\) এর মান:
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\sin^2\theta\)
Dhaka Board 2021
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60°\) এর মান কত?
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Dhaka Board 2021
Q21
MCQ
\(\tan 45° \times \cos 45° = ?\)
\(\tan 45° \times \cos 45°\) এর মান:
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{1}{\sqrt{2}}\)
গ.
1
ঘ.
\(\sqrt{2}\)
Dhaka Board 2021
Q22
MCQ
If \(\sin\theta = \frac{4}{5}\), then \(\cos\theta = ?\) (first quadrant)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta = ?\) (প্রথম চতুর্ভাগে)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{3}{4}\)
Dhaka Board 2021
Q23
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
\(\sec^2\theta - \tan^2\theta\) এর মান:
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\sin^2\theta\)
Dinajpur Board 2021
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60°\) এর মান কত?
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Dinajpur Board 2021
Q21
MCQ
\(\tan 45° \times \cos 45° = ?\)
\(\tan 45° \times \cos 45°\) এর মান:
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{1}{\sqrt{2}}\)
গ.
1
ঘ.
\(\sqrt{2}\)
Dinajpur Board 2021
Q22
MCQ
If \(\sin\theta = \frac{4}{5}\), then \(\cos\theta = ?\) (first quadrant)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta = ?\) (প্রথম চতুর্ভাগে)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{3}{4}\)
Dinajpur Board 2021
Q23
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
\(\sec^2\theta - \tan^2\theta\) এর মান:
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\sin^2\theta\)
Jessore Board 2021
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60°\) এর মান কত?
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Jessore Board 2021
Q21
MCQ
\(\tan 45° \times \cos 45° = ?\)
\(\tan 45° \times \cos 45°\) এর মান:
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{1}{\sqrt{2}}\)
গ.
1
ঘ.
\(\sqrt{2}\)
Jessore Board 2021
Q22
MCQ
If \(\sin\theta = \frac{4}{5}\), then \(\cos\theta = ?\) (first quadrant)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta = ?\) (প্রথম চতুর্ভাগে)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{3}{4}\)
Jessore Board 2021
Q23
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
\(\sec^2\theta - \tan^2\theta\) এর মান:
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\sin^2\theta\)
Mymensingh Board 2021
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60°\) এর মান কত?
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Mymensingh Board 2021
Q21
MCQ
\(\tan 45° \times \cos 45° = ?\)
\(\tan 45° \times \cos 45°\) এর মান:
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{1}{\sqrt{2}}\)
গ.
1
ঘ.
\(\sqrt{2}\)
Mymensingh Board 2021
Q22
MCQ
If \(\sin\theta = \frac{4}{5}\), then \(\cos\theta = ?\) (first quadrant)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta = ?\) (প্রথম চতুর্ভাগে)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{3}{4}\)
Mymensingh Board 2021
Q23
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
\(\sec^2\theta - \tan^2\theta\) এর মান:
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\sin^2\theta\)
Rajshahi Board 2021
Q20
MCQ
\(\sin 45° = ?\)
\(\sin 45°\) এর মান:
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{\sqrt{2}}{2}\)
গ.
\(\frac{\sqrt{3}}{2}\)
ঘ.
1
Rajshahi Board 2021
Q21
MCQ
\(\cos 0° + \sin 90° = ?\)
\(\cos 0° + \sin 90°\) এর মান:
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\frac{1}{2}\)
Rajshahi Board 2021
Q22
MCQ
If \(\cos\theta = \frac{5}{13}\), then \(\sin\theta = ?\) (first quadrant)
\(\cos\theta = \frac{5}{13}\) হলে \(\sin\theta = ?\) (প্রথম চতুর্ভাগে)
▼
ক.
\(\frac{8}{13}\)
খ.
\(\frac{12}{13}\)
গ.
\(\frac{5}{12}\)
ঘ.
\(\frac{13}{5}\)
Rajshahi Board 2021
Q23
MCQ
\(1 + \cot^2\theta = ?\)
\(1 + \cot^2\theta\) এর মান:
▼
ক.
\(\sec^2\theta\)
খ.
\(\csc^2\theta\)
গ.
\(\tan^2\theta\)
ঘ.
\(\cos^2\theta\)
Sylhet Board 2021
Q20
MCQ
\(\sin 30° + \cos 60° = ?\)
\(\sin 30° + \cos 60°\) এর মান কত?
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Sylhet Board 2021
Q21
MCQ
\(\tan 45° \times \cos 45° = ?\)
\(\tan 45° \times \cos 45°\) এর মান:
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{1}{\sqrt{2}}\)
গ.
1
ঘ.
\(\sqrt{2}\)
Sylhet Board 2021
Q22
MCQ
If \(\sin\theta = \frac{4}{5}\), then \(\cos\theta = ?\) (first quadrant)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta = ?\) (প্রথম চতুর্ভাগে)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{3}{4}\)
Sylhet Board 2021
Q23
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
\(\sec^2\theta - \tan^2\theta\) এর মান:
▼
ক.
0
খ.
1
গ.
2
ঘ.
\(\sin^2\theta\)
Barisal Board 2020
Q22
MCQ
\(\sin 30° = ?\)
\(\sin 30° = ?\)
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{\sqrt{3}}{2}\)
গ.
\(1\)
ঘ.
\(\frac{1}{\sqrt{2}}\)
Barisal Board 2020
Q23
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
\(\sec^2\theta - \tan^2\theta = ?\)
▼
ক.
0
খ.
1
গ.
\(\sin^2\theta\)
ঘ.
\(\cos^2\theta\)
Barisal Board 2020
Q24
MCQ
If \(\sin\theta = \frac{4}{5}\), then \(\cos\theta = ?\) (\(\theta\) acute)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{1}{5}\)
Chittagong Board 2020
Q22
MCQ
\(\cos 0° = ?\)
\(\cos 0° = ?\)
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
\(\frac{\sqrt{3}}{2}\)
ঘ.
1
Chittagong Board 2020
Q23
MCQ
\(1 + \tan^2\theta = ?\)
\(1 + \tan^2\theta = ?\)
▼
ক.
\(\sin^2\theta\)
খ.
\(\cos^2\theta\)
গ.
\(\sec^2\theta\)
ঘ.
\(\csc^2\theta\)
Chittagong Board 2020
Q24
MCQ
\(\sin 60° \times \cos 30° + \cos 60° \times \sin 30° = ?\)
\(\sin 60° \times \cos 30° + \cos 60° \times \sin 30° = ?\)
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{\sqrt{3}}{2}\)
গ.
1
ঘ.
\(\frac{3}{4}\)
Comilla Board 2020
Q22
MCQ
\(\sin 30° = ?\)
\(\sin 30° = ?\)
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{\sqrt{3}}{2}\)
গ.
\(1\)
ঘ.
\(\frac{1}{\sqrt{2}}\)
Comilla Board 2020
Q23
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
\(\sec^2\theta - \tan^2\theta = ?\)
▼
ক.
0
খ.
1
গ.
\(\sin^2\theta\)
ঘ.
\(\cos^2\theta\)
Comilla Board 2020
Q24
MCQ
If \(\sin\theta = \frac{4}{5}\), then \(\cos\theta = ?\) (\(\theta\) acute)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{1}{5}\)
Dhaka Board 2020
Q22
MCQ
\(\sin 30° = ?\)
\(\sin 30° = ?\)
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{\sqrt{3}}{2}\)
গ.
\(1\)
ঘ.
\(\frac{1}{\sqrt{2}}\)
Dhaka Board 2020
Q23
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
\(\sec^2\theta - \tan^2\theta = ?\)
▼
ক.
0
খ.
1
গ.
\(\sin^2\theta\)
ঘ.
\(\cos^2\theta\)
Dhaka Board 2020
Q24
MCQ
If \(\sin\theta = \frac{4}{5}\), then \(\cos\theta = ?\) (\(\theta\) acute)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{1}{5}\)
Dinajpur Board 2020
Q22
MCQ
\(\sin 30° = ?\)
\(\sin 30° = ?\)
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{\sqrt{3}}{2}\)
গ.
\(1\)
ঘ.
\(\frac{1}{\sqrt{2}}\)
Dinajpur Board 2020
Q23
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
\(\sec^2\theta - \tan^2\theta = ?\)
▼
ক.
0
খ.
1
গ.
\(\sin^2\theta\)
ঘ.
\(\cos^2\theta\)
Dinajpur Board 2020
Q24
MCQ
If \(\sin\theta = \frac{4}{5}\), then \(\cos\theta = ?\) (\(\theta\) acute)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{1}{5}\)
Jessore Board 2020
Q22
MCQ
\(\sin 30° = ?\)
\(\sin 30° = ?\)
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{\sqrt{3}}{2}\)
গ.
\(1\)
ঘ.
\(\frac{1}{\sqrt{2}}\)
Jessore Board 2020
Q23
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
\(\sec^2\theta - \tan^2\theta = ?\)
▼
ক.
0
খ.
1
গ.
\(\sin^2\theta\)
ঘ.
\(\cos^2\theta\)
Jessore Board 2020
Q24
MCQ
If \(\sin\theta = \frac{4}{5}\), then \(\cos\theta = ?\) (\(\theta\) acute)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{1}{5}\)
Mymensingh Board 2020
Q22
MCQ
\(\sin 30° = ?\)
\(\sin 30° = ?\)
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{\sqrt{3}}{2}\)
গ.
\(1\)
ঘ.
\(\frac{1}{\sqrt{2}}\)
Mymensingh Board 2020
Q23
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
\(\sec^2\theta - \tan^2\theta = ?\)
▼
ক.
0
খ.
1
গ.
\(\sin^2\theta\)
ঘ.
\(\cos^2\theta\)
Mymensingh Board 2020
Q24
MCQ
If \(\sin\theta = \frac{4}{5}\), then \(\cos\theta = ?\) (\(\theta\) acute)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{1}{5}\)
Rajshahi Board 2020
Q22
MCQ
\(\tan 45° = ?\)
\(\tan 45° = ?\)
▼
ক.
0
খ.
\(\frac{1}{2}\)
গ.
1
ঘ.
\(\sqrt{3}\)
Rajshahi Board 2020
Q23
MCQ
\(\sin(90° - \theta) = ?\)
\(\sin(90° - \theta) = ?\)
▼
ক.
\(\sin\theta\)
খ.
\(\cos\theta\)
গ.
\(\tan\theta\)
ঘ.
\(-\sin\theta\)
Rajshahi Board 2020
Q24
MCQ
If \(\cos\theta = \frac{5}{13}\), then \(\tan\theta = ?\) (\(\theta\) acute)
\(\cos\theta = \frac{5}{13}\) হলে \(\tan\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{12}{13}\)
খ.
\(\frac{5}{12}\)
গ.
\(\frac{12}{5}\)
ঘ.
\(\frac{13}{12}\)
Sylhet Board 2020
Q22
MCQ
\(\sin 30° = ?\)
\(\sin 30° = ?\)
▼
ক.
\(\frac{1}{2}\)
খ.
\(\frac{\sqrt{3}}{2}\)
গ.
\(1\)
ঘ.
\(\frac{1}{\sqrt{2}}\)
Sylhet Board 2020
Q23
MCQ
\(\sec^2\theta - \tan^2\theta = ?\)
\(\sec^2\theta - \tan^2\theta = ?\)
▼
ক.
0
খ.
1
গ.
\(\sin^2\theta\)
ঘ.
\(\cos^2\theta\)
Sylhet Board 2020
Q24
MCQ
If \(\sin\theta = \frac{4}{5}\), then \(\cos\theta = ?\) (\(\theta\) acute)
\(\sin\theta = \frac{4}{5}\) হলে \(\cos\theta = ?\) (\(\theta\) সূক্ষ্মকোণ)
▼
ক.
\(\frac{3}{5}\)
খ.
\(\frac{4}{5}\)
গ.
\(\frac{5}{4}\)
ঘ.
\(\frac{1}{5}\)