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Find which one is true. If A and B are t...

Find which one is true.
If A and B are two matrices such that A+B and BA are both defined then:

A

A and B must be square matrices of same order.

B

A =-B

C

No. of columns of B must be no. of rows of A.

D

A and B are any two matrices.

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The correct Answer is:
A
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