If AB = I and B = A^T, then ....... - Vidyadip

MCQ

If $AB = I$ and $B = A^T,$ then $.......$

A
$A^{-1} = A$
B
$A^{-1} = A^2$
✓
$A^{-1} = A^T$
D
$A = A^T$

✓

Answer

Correct option: C.

$A^{-1} = A^T$

$A^{-1} = A^T$

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