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

Answer: Option D

Explanation:

• A. $\frac{3}{2}$
• B. $\frac{3}{4}$
• C. $\frac{2}{3}$
• D. $\frac{1}{2}$

Answer: Option C

Explanation:

• 
• A. 126°
• B. 108°
• C. 72°
• D. 54°

Answer: Option D

Explanation:

• A. $49°$
• B. $62°$
• C. $139°$
• D. $82°$

Answer: Option D

Explanation:

• A. $60°$
• B. $80°$
• C. $90°$
• D. $95°$

Answer: Option B

Explanation:

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

Answer: Option C

Explanation:

• A. $30°$
• B. $45°$
• C. $75°$
• D. $105°$

Answer: Option C

Explanation:

• A. $\left\{1\right\}$
• B. $R-\left\{\frac{3}{2}\right\}$
• C. $R-\left\{1,-1\right\}$
• D. $\left\{x\in R : x=not1\right\}$

Answer: Option D

Explanation:

• A. $x^2+\frac{1}{x^2}$
• B. $1+\frac{1}{x^2}$
• C. $x+\frac{1}{x}$
• D. $x^2+1$

Answer: Option C

Explanation:

• A. $4$
• B. $2$
• C. $1$
• D. $0$

Answer: Option D

Explanation:

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

Answer: Option B

Explanation:

• A. $In\left|x\right|+c$
• B. $\log {10}^x+C$
• C. $-\frac{1}{x^2}$
• D. $-\frac{1}{2x^2}$

Answer: Option A

Explanation:

• A. $\frac{1}{2}{\tan }^{-1}\left(\frac{\tan x}{2}\right)+c$
• B. $\frac{1}{3}{\tan }^{-1}\left(\frac{\tan x}{2}\right)+c$
• C. $2{\tan }^{-1}\left(\frac{\tan x}{2}\right)+c$
• D. ${\tan }^{-1}\left(ex\right)+c$

Answer: Option A

Explanation:

• A. $2\sqrt{1+\tan x}-c$
• B. $\sqrt{1+\tan x}-c$
• C. $2\sqrt{1+{\tan }^{2}x}-c$
• D. কোনটিই নয়

Answer: Option A

Explanation:

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

Answer: Option B

Explanation: