Mathematics · Matrices and Determinants
If A = 13 [1 -2 2; -2 1 2; -2 -2 -1], then matrix A is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1An Idempotent Matrix
- 2An Involutory Matrix
- 3An Orthogonal Matrix✓
- 4A Nilpotent Matrix
Correct answer
An Orthogonal Matrix
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