• 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. $2$
• B. $\frac{3\pm \sqrt{17}}{2}$
• C. $1$
• D. $\frac{3\pm \sqrt{15}}{2}$

Answer: Option B

Explanation:

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

Answer: Option B

Explanation:

• A. $x^2-10x+34=0$
• B. $x^2-5x-34=0$
• C. $x^2+5x-34=0$
• D. $x^2+5x+34=0$

Answer: Option A

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. অধিবৃত্ত
• B. উপবৃত্ত
• C. বৃত্ত
• D. সরলরেখা

Answer: Option B

Explanation:

• A. $0$
• B. $2$
• C. $4$
• D. $-4$

Answer: Option C

Explanation: