• A. $1$
• B. $2^{n+1}$
• C. $3$
• D. $2^n$

Answer: Option B

Explanation:

• A. $\sqrt{5}$
• B. $1$
• C. $-\sqrt{5}$
• D. $\pm \sqrt{5}$

Answer: Option A

Explanation:

• A. $4$
• B. $5$
• C. $6$
• D. $7$

Answer: Option B

Explanation:

• A. $\log 8$
• B. $\log 27$
• C. $\log 5$
• D. $\log 10$

Answer: Option B

Explanation:

• A. $3^x$
• B. $3^x+2$
• C. $2^x-2$
• D. $2^x$

Answer: Option A

Explanation:

• A. $6/5$
• B. $\sqrt{\frac{5}{6}}$
• C. $5/6$
• D. $1/2$

Answer: Option C

Explanation:

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

Answer: Option C

Explanation:

• A. $-3$
• B. $-1$
• C. $1$
• D. $4$

Answer: Option B

Explanation:

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

Answer: Option A

Explanation:

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

Answer: Option A

Explanation:

• A. $y=\log x^a$
• B. $x=\log x^y$
• C. $a=\log x^y$
• D. $x=\log y^a$

Answer: Option B

Explanation:

• A. 30
• B. 28
• C. 29
• D. 27

Answer: Option A

Explanation:

• A. 120
• B. 125
• C. 225
• D. 375

Answer: Option B

Explanation:

• A. -1
• B. 1
• D. 1/ 2

Answer: Option B

Explanation:

• A. ১০
• B. ১২
• C. ১১
• D. ৯

Answer: Option C

Explanation: