• A. $৪৪°$
• B. $৫৬°$
• C. $৬৬°$
• D. $৭০°$

Answer: Option B

Explanation:

• A. ২১
• B. ১০
• C. ৯
• D. ৩

Answer: Option D

Explanation:

• A. ${৬}^{৭}$
• B. ${৬}^{৯}$
• C. ${৭}^{৭}$
• D. ${৭}^{৬}$
• E. ${৭}^{৯}$

Answer: Option C

Explanation:

• A. $১০০$
• B. $১২৫$
• C. $৫২৫$
• D. $৬২৫$

Answer: Option B

Explanation:

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

Answer: Option A

Explanation:

• A. 8
• B. 1
• D. 4

Answer: Option B

Explanation:

• A. সামান্তরিক
• B. রম্বস
• C. ট্রাপিজিয়াম
• D. আয়তক্ষেত্র

Answer: Option D

Explanation:

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

Answer: Option B

Explanation:

• A. x = c, y = a
• B. x = c, y = -a
• C. x = -c, y = a
• D. x = a, y = c

Answer: Option A

Explanation:

• A. 1
• B. a
• C. -1
• D. a-1

Answer: Option A

Explanation:

• A. 1
• B. a
• C. a-1
• D. a+1

Answer: Option A

Explanation:

• A. $\left\{2\right\}$
• B. $\left\{2,3,7\right\}$
• C. $\left\{1,2,3,\right\}$
• D. $\left\{3\right\}$

Answer: Option B

Explanation:

• A. a
• B. 1
• C. অনির্নেয়

Answer: Option B

Explanation:

• A. $a^2$
• B. $a^{-1}$
• C. $a^{-2}$
• D. $a$

Answer: Option D

Explanation:

• A. $a^3$
• B. $b^3$
• C. $c^3$
• D. $0$

Answer: Option C

Explanation: