• A. $\frac{২}{৩}$
• B. $\frac{১}{২}$
• C. $\frac{৩}{৪}$
• D. $\frac{১}{৪}$

Answer: Option A

Explanation:

• A. $\left(x+2\right) \left(x^2-2x\right)$
• B. $\left(x-2\right) \left(x^2+2x+3\right)$
• C. $\left(x-2\right)$
• D. $\left(x^2+2x+3\right)$

Answer: Option B

Explanation:

• A. $\frac{x+5}{x+6}$
• B. $\frac{x+5}{x-6}$
• C. $\frac{x-5}{x+6}$
• D. $\frac{x-5}{x-6}$

Answer: Option A

Explanation:

• B. 1
• C. $\sqrt{2}$
• D. 2

Answer: Option A

Explanation:

• A. $\frac{1}{-4x^2}$
• B. $\frac{1}{-2x^2}$
• C. $\frac{1}{4x^2}$
• D. $\frac{1}{2x^2}$

Answer: Option A

Explanation:

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

Answer: Option A

Explanation:

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

Answer: Option D

Explanation:

• A. ৩.০০৫১০
• B. ৩.০৫০১০
• C. ৩.০০০১৫
• D. ৩.০০০৬০

Answer: Option A

Explanation:

• A. $\left(x-y-1\right)\left(x-y+1\right)$
• B. $\left(x-y+1\right)\left(x+y-1\right)$
• C. $\left(x+y+1\right)\left(x-y-1\right)$
• D. $\left(x-y\right)\left(x+y+1\right)$

Answer: Option B

Explanation:

• A. 52
• B. 46
• C. 26
• D. 22

Answer: Option C

Explanation:

• A. 20 °
• B. $22\frac{1}{2}°$
• C. 23 °
• D. $23\frac{1}{2}°$

Answer: Option B

Explanation:

• A. $\sqrt[3]{243}$
• B. $\sqrt[3]{343}$
• C. $\sqrt[3]{392}$
• D. $\sqrt[3]{676}$

Answer: Option B

Explanation:

• A. 3
• B. -3
• C. 2
• D. -2

Answer: Option B

Explanation:

• A. a>0
• B. a ≠ 1
• C. a ≠ 0 , a > 1
• D. a > 0 , a ≠ 1

Answer: Option D

Explanation:

• A. x + y
• B. x − y
• D. 1

Answer: Option D

Explanation: