Q. 203.7( 3 Votes )

For any square ma

Answer :

Here, we have any square matrix

To Find: AAT is symmetric or skew – symmetric


Proof: Firstly, we take the transpose of AAT, so we get


(AAT)T = (AT)T AT [ (AB)T = BTAT]


(AAT)T = AAT [ (AT)T = A]


AAT is a symmetric matrix


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