• A. $\frac{\mathrm{\pi }}{3}$
• B. $\frac{5\mathrm{\pi }}{6}$
• C. $\frac{\mathrm{\pi }}{6}$
• D. $\frac{4\mathrm{\pi }}{6}$

Answer: Option B

Explanation:

• A. $\frac{1}{-5}$
• B. $\frac{1}{6}$
• C. -8
• D. $-\frac{1}{4}$

Answer: Option D

Explanation:

• A. $-\frac{5}{2}$
• B. $-\frac{3}{2}$
• C. $\frac{3}{2}$
• D. $\frac{5}{2}$

Answer: Option A

Explanation:

• A. 4
• B. 3
• C. 5
• D. 2

Answer: Option D

Explanation:

• A. $4\times 2$
• B. $4\times 3$
• C. $4\times 4$
• D. $4\times 5$

Answer: Option A

Explanation:

• A. $4\times 2$
• B. $5\times 4$
• C. $5\times 2$
• D. $2\times 5$

Answer: Option C

Explanation:

• A. $\left(2,\frac{4\pi }{3}\right)$
• B. $\left(1,\frac{2\pi }{3}\right)$
• C. $\left(3,\frac{\pi }{2}\right)$
• D. $\left(2,2\pi \right)$

Answer: Option A

Explanation:

• A. 81s
• B. 9s
• C. 3s
• D. কোনটিই নয়

Answer: Option B

Explanation:

• A. 8J
• B. 11J
• C. 5J
• D. 2J

Answer: Option C

Explanation:

• A. $54\sqrt{3}$
• B. $27\sqrt{3}$
• C. $36\sqrt{3}$
• D. $45\sqrt{3}$

Answer: Option C

Explanation:

• A. $y={\cos }^{-1}\left(x\right)$
• B. $y={\left({\cos }^{-1}\left(x\right)\right)}^2$
• C. $y=y={\sin }^{-1}\left(x\right)$
• D. $y={\tan }^{-1}\left(x\right)$

Answer: Option B

Explanation:

• A. $\frac{4}{3}$
• B. $\frac{3}{4}$
• C. $\frac{5}{3}$
• D. $\frac{3}{5}$

Answer: Option A

Explanation:

• A. 2
• B. $\sqrt{2}$
• C. $\frac{1}{2}$
• D. 1

Answer: Option B

Explanation:

• A. 7
• B. 6
• C. 5
• D. 3

Answer: Option A

Explanation:

• A. 0.5
• B. 1.5
• C. 2

Answer: Option C

Explanation: