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Let A and B be square matrices of the...

Let `A` and `B` be square matrices of the same order. Does `(A+B)^2=A^2+2A B+B^2` hold? If not, why?

A

AB=BA

B

AB+BA =O

C

`|AB| ne 0`

D

`|AB| = 0`

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The correct Answer is:
A
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