Question:
If \(A\)=\( \begin{vmatrix} 3 & 1 \\[0.1em] -1 & 2 \end{vmatrix}\) then \(A^2-5A=\)
If \(A\)=\( \begin{vmatrix} 3 & 1 \\[0.1em] -1 & 2 \end{vmatrix}\) then \(A^2-5A=\)
Updated On: May 21, 2024
- \(7I\)
- \(-7I\)
- \(2I\)
- \(-3I\)
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The Correct Option is B
Solution and Explanation
The correct option is (B): \(-7I\)
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