Mathematics · Matrices and Determinants
If A = 034-305-4-50, then which one of the following statements is correct?
- 1A2 is a skew-symmetric matrix with det(A2) ≠ 0.
- 2A2 is a skew-symmetric matrix with det(A2) = 0.
- 3A2 is a symmetric matrix with det(A2) ≠ 0.
- 4A2 is a symmetric matrix with det(A2) = 0.✓
Correct answer
A2 is a symmetric matrix with det(A2) = 0.
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