• A. 1/80
• B. 1/800
• C. 1/8000
• D. 1/8

Answer: Option D

Explanation:

• A. $\frac{4}{5}$
• B. $\frac{5}{4}$
• C. $\frac{14}{15}$
• D. $\frac{20}{13}$

Answer: Option B

Explanation:

• A. $49 \pi / 3$
• B. $36\pi$
• C. $15 \sqrt{2\pi }$
• D. $3 \sqrt{2\pi }$
• E. None

Answer: Option B

Explanation:

• A. $\frac{121}{81}$
• B. $\frac{119}{81}$
• C. $\frac{81}{121}$
• D. $-\frac{121}{81}$

Answer: Option A

Explanation:

• A. $8\sqrt{2}$
• B. $16\sqrt{1}$
• C. $18\sqrt{3}$
• D. $24\sqrt{3}$

Answer: Option D

Explanation:

• A. $a=a^{\frac{x}{yz}}$
• B. $a=a^{\frac{y}{zx}}$
• C. $b=c^{\frac{x}{yz}}$
• D. $a=a^{xyz}$

Answer: Option D

Explanation:

• A. $0$
• B. $\sqrt{2}$
• C. $2$
• D. $4$

Answer: Option A

Explanation:

• A. $\frac{১}{৪৯}$অংশ
• B. $\frac{১}{১৪}$অংশ
• C. $\frac{১}{৭}$অংশ
• D. সম্পূর্ণ কাজ

Answer: Option C

Explanation:

• A. $\frac{১}{৪}$
• B. $\frac{৪}{৯}$
• C. $\frac{৯}{২০}$
• D. $\frac{৯}{৪}$

Answer: Option D

Explanation:

• 
• A. $\frac{1}{2}ab\sin \theta$
• B. $\frac{1}{2}ab{\sin }^2\theta$
• C. $ab\cos \theta$
• D. $\frac{1}{2}ab{\cos }^2\theta$

Answer: Option A

Explanation:

• 
• A. 90 °
• B. 120 °
• C. 180 °
• D. 360 °

Answer: Option C

Explanation:

• A. ±1
• B. ±2
• C. ±3
• D. ±4

Answer: Option A

Explanation:

• A. -1
• B. 1
• C. 13/5
• D. -5

Answer: Option D

Explanation:

• A. $\frac{2}{3}$
• B. $\frac{1}{3}$
• C. $\frac{4}{3}$
• D. $\frac{5}{3}$

Answer: Option B

Explanation:

• A. $\frac{1}{5}$
• B. $\frac{3}{2}$
• C. $\frac{2}{3}$
• D. $\frac{5}{8}$

Answer: Option B

Explanation: