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1. |
Which among the following is the new matrix after applying the elementary operation C1→4C1 on the matrix A=\(\begin{bmatrix}5&8\\-1&2\\3&-4\end{bmatrix}\)? |
A. | \(\begin{bmatrix}5&8\\-1&2\\3&-4\end{bmatrix}\) |
B. | \(\begin{bmatrix}20&8\\-4&2\\12&-4\end{bmatrix}\) |
C. | \(\begin{bmatrix}20&8\\4&2\\12&-4\end{bmatrix}\) |
D. | \(\begin{bmatrix}20&8\\-4&2\\12&4\end{bmatrix}\) |
Answer» C. | |