Mathematics · Linear Algebra
Let A ∈ &mathbb;R7×7. Define S = { λ ∈ &mathbb;R : det(A - λI) = det(λI - A) }. Then which of the following is correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1S = &mathbb;R✓
- 2|S| ≥ 1
- 3|S| ≤ 7
- 4|S| = 7
Correct answer
S = &mathbb;R
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