Mathematics · Linear Algebra
The characteristic polynomial of the matrix A = [2 -1 1] [-1 2 -1] [1 -1 2] is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1-λ3 + 6λ2 - 9λ + 4✓
- 2λ3 + 6λ2 + 9λ + 4
- 3λ3 + 6λ2 + 9λ - 4
- 4-λ3 - 6λ2 + 9λ - 4
Correct answer
-λ3 + 6λ2 - 9λ + 4
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