Question:
If \(A = \begin{bmatrix} 1 & 2 & 2 \\ 2 & 1 & 2 \\ 2 & 2 & 1 \end{bmatrix} \)and I = unit matrix, then the value of \(A^2-4A\) is:
If \(A = \begin{bmatrix} 1 & 2 & 2 \\ 2 & 1 & 2 \\ 2 & 2 & 1 \end{bmatrix} \)and I = unit matrix, then the value of \(A^2-4A\) is:
Updated On: Mar 21, 2024
- 3I
- 4I
- 5I
- 6I
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The Correct Option is C
Solution and Explanation
The correct option is (C): 5I
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