Find the values of a and b for which the following holds:\left[ \begin – InterviewSolution

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1.	Find the values of a and b for which the following holds:\left[ \begin{array}{rr}{4} & {2} \\ {3} & {-1}\end{array}\right] \left[ \begin{array}{l}{a} \\ {b}\end{array}\right]=\left[ \begin{array}{c}{-4} \\ {2}\end{array}\right]
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