Question

why is equal to b and b is
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Answer 1

Answer:

1-If A & B are numbers then yes.

2-If matrices then may be or may be not depending on the matrices type like generally they are not commutative but they can be in these cases:

a)If atleast one of the matrice either A or B is identity one.

b)If matrices are diagonal matrices.

c)If they have same dimension.

d)If one is inverse of the other one.

Thanks for A2A… :