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

Answer: Option D

Explanation:

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

Answer: Option D

Explanation:

• A. 25
• B. $\frac{1}{6}$
• C. $\frac{1}{5}$
• D. $\frac{1}{36}$

Answer: Option C

Explanation:

• A. -4
• B. -6
• C. 6
• D. -2

Answer: Option D

Explanation:

• A. 2
• B. 1
• C. -2
• D. -1

Answer: Option B

Explanation:

• B. 1
• C. 2
• D. 3

Answer: Option B

Explanation:

• A. 8
• B. 3
• C. 5
• D. 4

Answer: Option D

Explanation:

• A. $3$
• B. $4$
• C. $5$
• D. $8$

Answer: Option B

Explanation:

• A. আয়ত
• B. বর্গ
• C. রম্বস
• D. ট্রাপিজিয়াম

Answer: Option C

Explanation:

• A. a/ c = b/ c
• B. a /c < b/ c
• C. a/ c > b/ c
• D. a/ c ≥ b /c

Answer: Option C

Explanation:

• A. {(2,1) (2,2) (3,2)}
• B. {(2,1) (3,1) (3,2)}
• C. {(1,2) (3,1) (3,2)}
• D. {(1,2) (1,3) (2,3)}

Answer: Option B

Explanation:

• A. a+b =0
• B. a-b=0
• C. a+b+1=0
• D. a+b-1=0

Answer: Option C

Explanation:

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

Answer: Option B

Explanation:

• A. 36
• B. 100
• C. 289
• D. 374

Answer: Option A

Explanation:

• A. অভেদক ম্যাট্রিক্স
• B. প্রতিসম ম্যাট্রিক্স
• C. শূন্য ম্যাট্রিক্স
• D. কোনটিই নয়

Answer: Option B

Explanation: