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Tardigrade
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Mathematics
For any square matrix A, AAT is a
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Q. For any square matrix $A, AA^T$ is a
Matrices
A
unit matrix
13%
B
symmetric matrix
52%
C
skew-symmetric matrix
25%
D
diagonal matrix
9%
Solution:
We have, $(AA^T) ^T = (A^T) ^ TA^T= AA^T $
$\therefore AA^T$is a symmetric matrix.