turkey-yks 2014 Q35

turkey-yks · Other · lys1-math Matrices Determinant and Rank Computation
$$\left[ \begin{array} { l l } 3 & 2 \\ 1 & 0 \end{array} \right] \cdot \mathrm { A } = \left[ \begin{array} { c c } - 2 & 4 \\ 1 & 5 \end{array} \right]$$
What is the determinant of matrix A that satisfies this equation?
A) 4
B) 5
C) 6
D) 7
E) 8
$$\left[ \begin{array} { l l } 
3 & 2 \\
1 & 0
\end{array} \right] \cdot \mathrm { A } = \left[ \begin{array} { c c } 
- 2 & 4 \\
1 & 5
\end{array} \right]$$

What is the determinant of matrix A that satisfies this equation?\\
A) 4\\
B) 5\\
C) 6\\
D) 7\\
E) 8