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1. |
Find a matrix X such that 2A + B + X = 0 , where\(A=\begin{bmatrix} -1 & 2 \\\ 3 & 4 \end{bmatrix} \ \text{and} \;\rm B =\ \begin{bmatrix} 3 & -2 \\\ 1 & 5 \end{bmatrix} \ ?\) |
A. | \(\begin{bmatrix} 1 & 2 \\\ 7 & 13 \end{bmatrix}\) |
B. | \(\begin{bmatrix} -1 & -2 \\\ -7 & -13 \end{bmatrix}\) |
C. | \(\begin{bmatrix} 13 & 2 \\\ 7 & 1 \end{bmatrix}\) |
D. | \(\begin{bmatrix} -13 & -2 \\\ -7 & -1 \end{bmatrix}\) |
Answer» C. \(\begin{bmatrix} 13 & 2 \\\ 7 & 1 \end{bmatrix}\) | |