If A is any square matrix, then AA’ is a

Skew- symmetric matrix

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Symmetric matrix

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Hatmitian Matrix

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Skew-harmitian Matrix

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Solution

The correct option is B
Symmetric matrix

Let P = AA’

P’ = (AA’)’ = (A’)’ A’ = AA’ = P

So the matrix is symmetric

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If A is a symmetric matrix, then matrix M'AM is

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If A is a square matrix then $A -^{T}$ is a skew hermitian matrix.

A + A^{T}

A - A^{T} =

B

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