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Let ((1,2),(3,4)) and B=((a,0),(0,b)), a...

Let `((1,2),(3,4))` and `B=((a,0),(0,b)), a, b epsilon N`. Then

A

there exists exactly one B such that `AB=BA`

B

there exist infinitely many B's such that `AB=BA`

C

there cannot exist any B such that `AB=BA`

D

there exist more tan one but finite number of B's such that `AB=BA`

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-MATRICES-EXERCISE 1A MCQ (ALGEBRA OF MATRICES)
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