• A. 1
• B. 2
• C. 3
• D. 4

Answer: Option D

Explanation:

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

Answer: Option A

Explanation:

• A. $\log a^m-\log a^n$
• B. $\log a^m+\log a^n$
• C. $\log a^m\times \log a^n$
• D. $কোনোটিই নয়$

Answer: Option A

Explanation:

• A. 1
• B. 4
• C. 2
• D. 5

Answer: Option B

Explanation:

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

Answer: Option A

Explanation:

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

Answer: Option B

Explanation:

• A. 4
• B. 3
• C. 2
• D. 1

Answer: Option B

Explanation:

• A. $4$
• B. $27\sqrt{3}$
• C. $8$
• D. $\frac{1}{8}$

Answer: Option C

Explanation:

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

Answer: Option A

Explanation:

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

Answer: Option C

Explanation:

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

Answer: Option A

Explanation:

• A. $\frac{1+b^2}{1-b^2}$
• B. $\frac{1-b^2}{1+b^2}$
• C. $\frac{2b}{1+b^2}$
• D. $\frac{2b}{1-b^2}$

Answer: Option C

Explanation:

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

Answer: Option B

Explanation:

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

Answer: Option D

Explanation:

• A. $\frac{5}{2}$
• B. $\frac{1}{2}$
• C. $\frac{125}{2}$
• D. $\frac{25}{\sqrt{5}}$

Answer: Option A

Explanation: