Question

If A is a square matrix, then which of the
following is not symmetric?
(1 Point)
O A + A^{T}
O AA^{T}
O A^{T}A
O A - A^{T}​

Answer 1

Step-by-step explanation:

A^{T}A

Answer is (B) A - A'

A is a square matrix (A - A′)′ = A′ - (A′)′ = A′ - A

So, A - A′ is not a symmetric matrix.