• A. -1
• B. 1
• D. 2

Answer: Option A

Explanation:

• A. π
• B. 1
• D. -1

Answer: Option C

Explanation:

• A. 10
• B. 20
• D. 30

Answer: Option D

Explanation:

• A. -x + c
• B. x + c
• C. $\frac{1}{x}+c$
• D. $-\frac{1}{x}+c$

Answer: Option C

Explanation:

• A. 2
• B. – 2
• C. -1
• D. 1

Answer: Option C

Explanation:

• A. $\frac{56}{3}$
• B. $\frac{32}{3}$
• C. $\frac{-64}{3}$
• D. $\frac{64}{3}$

Answer: Option D

Explanation:

• A. $ax+by+a^2=0$
• B. $ax+by=a^2$
• C. $ax-by=a^2$
• D. $by-ax=a^2$

Answer: Option C

Explanation:

• A. $\pm \sqrt{2}$
• B. $\pm 5\sqrt{2}$
• C. $\pm 2\sqrt{2}$
• D. $\pm 3\sqrt{2}$

Answer: Option C

Explanation:

• A. $\left[\begin{array}{cc}1& 0\\ 0& 0\end{array}\right]$
• B. $\left[\begin{array}{cc}0& 0\\ 0& 0\end{array}\right]$
• C. $\left[\begin{array}{cc}1& 0\\ 0& 1\end{array}\right]$
• D. $\left[\begin{array}{cc}i& 0\\ 0& i\end{array}\right]$

Answer: Option B

Explanation:

• A. -4
• B. -6
• C. 6
• D. -2

Answer: Option D

Explanation:

• B. 1
• C. -1
• 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:

• A. $\left(\frac{-7}{2},\frac{-7}{4}\right)$
• B. $\left(\frac{7}{2},\frac{-7}{4}\right)$
• C. $\left(\frac{7}{2},\frac{7}{4}\right)$
• D. $\left(-3,8\right)$

Answer: Option B

Explanation:

• A. 4
• B. 3
• C. 2
• D. 1

Answer: Option B

Explanation:

• A. 27 ও 60
• B. 30 ও 63
• C. 27 ও 63
• D. 30 ও 60

Answer: Option A

Explanation: