Calculate where .

MATHEMATICS · Single correct · CBSE · Mathematics · Matrices · Matrices

Problem

Calculate (−3)A(-3)A where A=[2−134]A = \begin{bmatrix} 2 & -1 \\ 3 & 4 \end{bmatrix}. (a) [6−3912]\begin{bmatrix} 6 & -3 \\ 9 & 12 \end{bmatrix} (b) [−6−93−12]\begin{bmatrix} -6 & -9 \\ 3 & -12 \end{bmatrix} (c) [−63−9−12]\begin{bmatrix} -6 & 3 \\ -9 & -12 \end{bmatrix} (d) [−6−3−9−12]\begin{bmatrix} -6 & -3 \\ -9 & -12 \end{bmatrix}

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