1.

On using elementary row operation R_(1)toR_(1)-3R_(2) in the following matrix equation : [{:(4,2),(3,3):}]=[{:(1,2),(0,3):}]*[{:(2,0),(1,1):}]

Answer»

`[{:(-5,-7),(3,3):}]=[{:(1,-7),(0,3):}]*[{:(2,0),(1,1):}]`
`[{:(-5,-7),(3,3):}]=[{:(1,2),(0,3):}]*[{:(-1,-3),(1,1):}]`
`[{:(-5,-7),(3,3):}]=[{:(1,2),(1,-7):}]*[{:(2,0),(1,1):}]`
`[{:(4,2),(-5,-7):}]=[{:(1,2),(-3,-3):}]*[{:(2,0),(1,1):}]`

ANSWER :A


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