• A. a < 0
• B. b < 0
• C. ab > 0
• D. ab < 0
• E. None

Answer: Option B

Explanation:

• A. 3
• B. 0
• C. -3
• D. -3

Answer: Option C

Explanation:

• A. 5
• B. 01
• C. 11
• D. 7

Answer: Option D

Explanation:

• A. $A{c}^2=3a^2$
• B. $AC=5a$
• C. $A{C}^2=5a^2$
• D. $A{C}^2=7a^2$

Answer: Option B

Explanation:

• A. $1/2$
• B. $-1/2$
• C. $\sqrt{3}/2$
• D. $1/\sqrt{2}$

Answer: Option B

Explanation:

• A. ০.০০৮
• B. ০.০০০৮
• C. ০.০০০০৮
• D. ০.০৮

Answer: Option B

Explanation:

• A. 9m
• B. 10m
• C. 11m
• D. 12m

Answer: Option A

Explanation:

• A. ৬
• B. ৩
• C. ৮
• D. ৫

Answer: Option A

Explanation:

• A. $0$
• B. $\frac{১}{২}\frac{১}{২}$
• C. $-১$
• D. $১$

Answer: Option D

Explanation:

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

Answer: Option D

Explanation:

• A. $\frac{x+y}{P+Q}$
• B. $\frac{x+y}{pq}$
• C. $\frac{px+Qy}{pq}$
• D. $\frac{px+qy}{p+q}$

Answer: Option D

Explanation:

• A. 1
• B. 2
• C. 3
• D. কোনোটিই নয়

Answer: Option D

Explanation:

• A. $\left\{1,2,3,\frac{2}{3}, 5.....\right\}$
• B. $\left\{-\infty ,\infty \right\}$
• C. $\left\{Q U Q\text{'}\right\}$
• D. $\left\{\pm 1,\pm 2,\pm 3..... \right\}$

Answer: Option C

Explanation:

• A. 4
• B. 3
• C. 2
• D. 1

Answer: Option A

Explanation:

• A. $\left\{x+iy\right\}$
• B. $\left\{x+iy;x,y\in R\right\}$
• C. $\left\{2i, 3i.....\right\}$
• D. $\left\{i, \pm 3i,2\right\}$

Answer: Option B

Explanation: