• A. $\frac{a}{b}$
• B. $\log k\frac{a}{b}$
• C. $\log k\frac{b}{c}$
• D. $0$

Answer: Option D

Explanation:

• A. $8$
• B. $6$
• C. $4$
• D. $2$

Answer: Option C

Explanation:

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

Answer: Option D

Explanation:

• A. $\left\{1,5\right\}$
• B. $\left\{2\right\}$
• C. $\left\{\varnothing ,\left(2\right)\right\}$
• D. $\left\{\varnothing \right\}$

Answer: Option C

Explanation:

• A. $0$
• B. $\frac{1}{2}$
• C. $\frac{\sqrt{3}}{2}$
• D. $1$

Answer: Option C

Explanation:

• A. $0$
• B. $\sqrt{3}$
• C. $3\sqrt{3}$
• D. $1$

Answer: Option B

Explanation:

• A. $3$
• B. $2$
• C. $1$
• D. $0$

Answer: Option C

Explanation:

• A. $০$
• B. $১$
• C. $৪$
• D. $৭$

Answer: Option D

Explanation:

• A. $-4$
• B. $-2$
• C. $-3$
• D. $-4\le X\le$

Answer: Option A

Explanation:

• A. $-5,1$
• B. $2,3$
• C. $-2,3$
• D. $1,-5$

Answer: Option B

Explanation:

• A. $9$
• B. $18$
• C. $19$
• D. $27$

Answer: Option A

Explanation:

• A. 30
• B. 60
• C. 200
• D. 420

Answer: Option B

Explanation:

• A. $x+y\ge 5$
• B. $x+y\le 11$
• C. $x-y\le 5$
• D. $x-y\ge 5$

Answer: Option D

Explanation:

• A. 1/4
• B. 3/4
• C. 1

Answer: Option D

Explanation:

• A. ২৪
• B. ২৫
• C. ২৬
• D. ৩০

Answer: Option C

Explanation: