• A. $xy$
• B. $x+y$
• C. $xy\left(x+y\right)$
• D. $x^{2}y\left(x+y\right)$

Answer: Option D

Explanation:

• A. ১০ মিটার
• B. ১২ মিটার
• C. ১৬ মিটার
• D. ৩২ মিটার

Answer: Option A

Explanation:

• A. 334
• B. 354
• C. 364
• D. 512

Answer: Option C

Explanation:

• A. 2
• B. 3
• C. 4
• D. 5

Answer: Option B

Explanation:

• A. $x^7-1$
• B. $x^7-1$
• C. $x^6-1$
• D. $x^5-1$

Answer: Option C

Explanation:

• A. $x=1,y=-1$
• B. $x=1,y=1$
• C. $x=-1,y=-1$
• D. $x=-1,y=1$

Answer: Option D

Explanation:

• A. $\frac{x\left(x+1\right)\left(2x+1\right)}{6}$
• B. $\frac{x\left(x+1\right)}{2}$
• C. $x$
• D. ${\left\{\frac{x\left(x+y\right)}{2}\right\}}^2$

Answer: Option A

Explanation:

• A. $\frac{2}{5}$
• B. $\frac{5}{2}$
• C. $\frac{7}{4}$
• D. $\frac{11}{2}$

Answer: Option B

Explanation:

• A. 100 π
• B. 10 π
• C. 1000
• D. π 3

Answer: Option B

Explanation:

• A. 1/4
• B. 2/3
• C. 1/2
• D. 3/4

Answer: Option D

Explanation:

• A. 78.4
• B. 79.2
• C. 64
• D. 81.2

Answer: Option B

Explanation:

• A. a 2 = b
• B. b 2 = ac
• C. a b = b c
• D. a = b = c

Answer: Option B

Explanation:

• A. $\frac{5}{3}$
• B. $\frac{2}{3}$
• C. $\frac{3}{5}$
• D. $\frac{5}{7}$

Answer: Option A

Explanation:

• A. $a>0,a\not\equiv 1$
• B. $a<0,a\not\equiv 1$
• C. $a>1,a\not\equiv 0$
• D. $a<1,av0$

Answer: Option A

Explanation:

• A. $6$
• B. $8$
• C. $10$
• D. $12$

Answer: Option C

Explanation: