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. ( begin{bmatrix}20&8 4&2 12&-4 end{bmatrix} )


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