• A. $-14/15$
• B. $-7/3$
• C. $-29$
• D. $-1$

Answer: Option C

Explanation:

• A. $\frac{1}{2}\left(\begin{array}{cc}4& 3\\ -2& -1\end{array}\right)$
• B. $-\frac{1}{2}\left(\begin{array}{cc}1& 3\\ 2& -4\end{array}\right)$
• C. $\frac{1}{2}\left(\begin{array}{cc}4& 2\\ -3& -1\end{array}\right)$
• D. $-\frac{1}{10}\left(\begin{array}{cc}4& 3\\ -2& -1\end{array}\right)$

Answer: Option A

Explanation:

• A. $\left(\begin{array}{ccc}1& 3& 3\\ 6& 8& 6\\ 11& 13& 9\end{array}\right)$
• B. $\left(\begin{array}{ccc}1& 2& 3\\ 4& 7& 9\\ 7& 12& 14\end{array}\right)$
• C. $\left(\begin{array}{cc}1& 3\\ 6& 8\\ 7& 8\end{array}\right)$
• D. অসম্ভব

Answer: Option D

Explanation:

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

Answer: Option A

Explanation:

• A. $\left(\begin{array}{cc}0& 1\\ 0& 1\end{array}\right)$
• 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. $\left(\begin{array}{cc}1& 1\\ 0& 1\end{array}\right)$

Answer: Option B

Explanation:

• A. 1
• B. -1
• D. 2

Answer: Option A

Explanation:

• A. {7}
• B. {2}
• C. {6}

Answer: Option C

Explanation:

• A. $\varnothing$
• B. $\left\{0\right\}$
• C. $\left\{4\right\}$
• D. $\left\{3\right\}$

Answer: Option B

Explanation:

• A. $\left[\begin{array}{cc}2& \frac{5}{2}\\ 3& 4\end{array}\right]$
• B. $\left[\begin{array}{cc}-2& -\frac{5}{2}\\ -3& -4\end{array}\right]$
• C. $\left[\begin{array}{cc}4& \frac{5}{2}\\ 3& 2\end{array}\right]$
• D. $\left[\begin{array}{cc}2& -3\\ -\frac{5}{2}& 4\end{array}\right]$

Answer: Option A

Explanation:

• A. $A=\left[\begin{array}{cc}6& -7\\ -4& 5\end{array}\right]$
• B. $A=\left[\begin{array}{cc}6& 7\\ 4& -5\end{array}\right]$
• C. $A=\left[\begin{array}{cc}2& 0\\ 0& 2\end{array}\right]$
• D. $A=\left[\begin{array}{cc}3& -\frac{7}{2}\\ -2& \frac{5}{2}\end{array}\right]$

Answer: Option C

Explanation:

• A. $\left[\begin{array}{cc}\frac{1}{2}& -1\\ -\frac{3}{2}& -2\end{array}\right]$
• B. $\left[\begin{array}{cc}-\frac{1}{2}& \frac{3}{2}\\ 1& -2\end{array}\right]$
• C. $\left[\begin{array}{cc}\frac{1}{2}& -\frac{3}{2}\\ -1& 2\end{array}\right]$
• D. $\left[\begin{array}{cc}-\frac{1}{2}& -1\\ \frac{3}{2}& -2\end{array}\right]$

Answer: Option B

Explanation:

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

Answer: Option A

Explanation:

• A. $\left[\begin{array}{ccc}5& 5& 1\\ 4& 2& 2\\ 1& 6& 6\end{array}\right]$
• B. $\left[\begin{array}{ccc}1& 5& 1\\ 4& -2& 2\\ 1& 6& 2\end{array}\right]$
• C. $\left[\begin{array}{ccc}1& 3& -1\\ 4& 0& 2\\ 1& 6& 4\end{array}\right]$
• D. $\left[\begin{array}{ccc}1& 3& -1\\ 2& -2& 0\\ -1& 4& 2\end{array}\right]$

Answer: Option B

Explanation:

• A. $\left[\begin{array}{cc}-1& -3\\ -4& 2\end{array}\right]$
• B. $\left[\begin{array}{cc}3& -1\\ 2& 4\end{array}\right]$
• C. $\left[\begin{array}{cc}1& 0\\ 0& 1\end{array}\right]$
• D. $\frac{1}{10}\left[\begin{array}{cc}-1& 3\\ -4& 2\end{array}\right]$

Answer: Option D

Explanation:

• A. $\left[\begin{array}{cc}44& -1\\ -31& 1\end{array}\right]$
• B. $\frac{1}{13}\left[\begin{array}{cc}44& -1\\ -31& 1\end{array}\right]$
• C. $\frac{1}{13}\left[\begin{array}{cc}-44& 1\\ 31& -1\end{array}\right]$
• D. $\frac{1}{13}\left[\begin{array}{cc}-31& 1\\ 44& -1\end{array}\right]$

Answer: Option D

Explanation: