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

Answer: Option B

Explanation:

• A. 1
• B. $\frac{1}{2}$
• D. 2

Answer: Option C

Explanation:

• A. ${\left(a-b\right)}^3$
• B. $a^2-b^2$
• C. ${\left(a+b\right)}^2$
• D. $a^2+b^2$

Answer: Option C

Explanation:

• A. ∞
• B. 1nx
• C. 𝑥°
• D. 1n|x|

Answer: Option B

Explanation:

• A. 2
• B. 3
• C. 4
• D. 5

Answer: Option C

Explanation:

• A. (1,5)
• B. (5, 1)
• C. (0, 4)
• D. (4,5)

Answer: Option A

Explanation:

• A. $x^2-x+1$
• B. $x^2+x-1$
• C. $x^3-1$
• D. $x^2-x-1$

Answer: Option B

Explanation:

• A. 60°
• B. 80°
• C. 90°
• D. 100°

Answer: Option B

Explanation:

• A. 4
• B. 6
• C. 8
• D. 10

Answer: Option C

Explanation:

• A. 85 °
• B. 65 °
• C. 183 °
• D. 75 °

Answer: Option B

Explanation:

• A. $b^2-4ac=0$
• B. $b^2-4ac>0$
• C. $b^2-4ac<0$
• D. $b^2-4ac\#0$

Answer: Option A

Explanation:

• A. ৪ সে.মি.
• B. ৮ সে.মি.
• C. ১৬ সে.মি.
• D. ৩২ সে.মি.

Answer: Option C

Explanation:

• A. 25
• B. 70
• C. 45
• D. 55

Answer: Option B

Explanation:

• A. $2a^2-a+2$
• B. $2a^2-a-2$
• C. $a-2$
• D. $a^2-2$

Answer: Option A

Explanation:

• A. ৪৮
• B. ৫৮
• C. ৪২
• D. ৪৬

Answer: Option C

Explanation: