For a matrix A, B and identity matrix I, if a matrix AB=I=BA then?

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answerhappygod
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For a matrix A, B and identity matrix I, if a matrix AB=I=BA then?

Post by answerhappygod »

a) B is inverse of A
b) A is inverse of B
c) A-1 = B, B-1 = A
d) All of the mentioned
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