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

Answer: Option D

Explanation:

• A. $0$
• B. $1$
• C. $2$
• D. $\frac{1}{2}$

Answer: Option B

Explanation:

• A. 2e
• B. 2(e - 1)
• C. $\frac{2}{e}-1$
• D. $1-\frac{1}{e}$

Answer: Option B

Explanation:

• A. e - 1
• B. $\frac{1}{2}\left(e-1\right)$
• C. 2 (e - 1)
• D. 2 (1 - e)

Answer: Option C

Explanation:

• A. $-\frac{1}{4}In\left(3+4\cos x\right)+c$
• C. $-\frac{3}{4}In\left(3+4\cos x\right)+c$
• D. $-\frac{1}{4}In\sin x+c$

Answer: Option A

Explanation:

• A. -4
• B. 3
• C. 4
• D. 9

Answer: Option B

Explanation:

• A. $\frac{\mathrm{\pi }}{3}$
• B. $\frac{\mathrm{\pi }}{2}$
• C. $\frac{\mathrm{\pi }}{6}$
• D. $\mathrm{\pi }$

Answer: Option B

Explanation:

• A. π/ 2
• B. π/ 3
• C. 1/6
• D. 1/9

Answer: Option C

Explanation:

• A. $\frac{1}{\sqrt{2}}$
• B. $\frac{1}{2}$
• C. $\frac{1}{\sqrt{3}}$
• D. $\frac{1}{3}$

Answer: Option B

Explanation:

• A. $\mathrm{\pi }$
• B. $\frac{\pi }{2}$
• C. $\frac{\pi }{3}$
• D. $\frac{\pi }{4}$

Answer: Option B

Explanation:

• A. $\frac{\mathrm{\pi }}{32}$
• B. $\frac{3\mathrm{\pi }}{32}$
• C. $\frac{5\mathrm{\pi }}{32}$
• D. $\frac{7\mathrm{\pi }}{32}$

Answer: Option C

Explanation:

• A. $\sqrt{ab}$
• B. $-\sqrt{ab}$
• C. $\sqrt{-ab}$
• D. কোনটি নয়

Answer: Option A

Explanation:

• A. $\frac{\pi }{3}$
• B. $\pi$
• C. $\frac{4\mathrm{\pi }}{3}$
• D. $\frac{2\mathrm{\pi }}{3}$

Answer: Option A

Explanation:

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

Answer: Option C

Explanation:

• A. $r=\sqrt{2}a$
• B. $\sqrt{2}r=a$
• C. r = 2a
• D. $r=2\sqrt{a}$

Answer: Option A

Explanation: