Question

If A is a square matrix, then show that
(a) (A + AT
) is symmetric matrix.
(b) (A- A') is skew symmetric
(c) (AAT
) is symmetric matrix


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Answer 1

Step-by-step explanation:

Here is the first two solutions try 3 rd one similarly.

Answer 2

here is the solution. in order to check symmetric or skew symmetric always take transpose