• A. 11
• B. 12
• C. 13
• D. 14

Answer: Option A

Explanation:

• A. $\frac{{৩}^n}{2}$
• B. $\frac{{৩}^n-১}{2}$
• C. ${৩}^n-১$
• D. $\frac{{৩}^n+১}{২}$

Answer: Option B

Explanation:

• A. $\frac{13}{12}{\log }_{e^x}$
• B. ${\log }_{e^x}$
• C. $\frac{1}{2}{\log }_{e^x}$
• D. ${\log }_e\sqrt{x}$

Answer: Option A

Explanation:

• A. 2
• B. 1
• D. 3

Answer: Option B

Explanation:

• A. 25
• B. $\frac{1}{6}$
• C. $\frac{1}{5}$
• D. $\frac{1}{36}$

Answer: Option C

Explanation:

• A. ৮
• B. ৩২
• C. ১৬
• D. ৬

Answer: Option C

Explanation:

• A. $\frac{\sqrt{30}}{5}$
• B. $\sqrt{6}$
• C. $\frac{30}{\sqrt{5}}$
• D. কোনটিই নয়

Answer: Option D

Explanation:

• A. $x^3$
• B. $x^2$
• C. $xy$
• D. $y^2$

Answer: Option B

Explanation:

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

Answer: Option A

Explanation:

• A. 1
• B. x
• C. (1-x)
• D. (1+x)

Answer: Option D

Explanation:

• A. ${27}^x$
• B. $9^x$
• C. $3x^3$
• D. $3^{2x+1}$

Answer: Option D

Explanation:

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

Answer: Option A

Explanation: