What are the eigenvalues of the matrix \(\begin{bmatrix} 2 & 1 & 1 \\[0.3em] 1 & 4 & 1 \\[0.3em] 1 & 2 & 2 \end{bmatrix}\)?
- 1, 2, 5
- 1, 3, 4
- -5, 1, 2
- -5, -1, 2
The Correct Option is A
Solution and Explanation
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