Mathematics · Linear Algebra
The characteristic equation of the matrix A = [1 2 2] [2 1 -2] [2 -2 1] is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1λ3 + 3λ2 - 9λ - 27 = 0
- 2λ3 - 3λ2 - 5λ + 21 = 0
- 3λ3 - 3λ2 - 9λ + 27 = 0✓
- 4λ3 - 3λ2 - 2λ + 21 = 0
Correct answer
λ3 - 3λ2 - 9λ + 27 = 0
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