1.

Find the value of A3+19A, A=\(\begin{bmatrix}2&-3&1\\2&0&-1\\1&4&5\end{bmatrix}\).

A. \(\begin{bmatrix}42&-14&70\\21&+21&-21\\105&119&203\end{bmatrix}\)
B. \(\begin{bmatrix}42&-7&70\\21&-21&-21\\105&119&203\end{bmatrix}\)
C. \(\begin{bmatrix}42&-14&70\\21&-21&-21\\105&119&203\end{bmatrix}\)
D. \(\begin{bmatrix}42&-7&70\\21&+21&-21\\105&119&203\end{bmatrix}\)
Answer» D. \(\begin{bmatrix}42&-7&70\\21&+21&-21\\105&119&203\end{bmatrix}\)


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