DeterminantHard

Question

If A is a non-singular matrix and A^T denotes the transpose of A, then:

Options

A.|A| ≠ |A^T|

B.|A. A^T| ≠ |A|²

C.|A^T. A| ≠ |A^T|²

D.|A| + |A^T| ≠ 0

Solution

|A| + |A^T| = 2|A| ≠ 0

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