AxB = BxA if and only if
a) A CB
b) BSA
c) A=B
d) AB
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Answer:
C a=b................
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If we take any 2 numbers let's say : 4 and 6
W.K.T. : 4*6=24 also 6*4=24
This will be true with any number
This is we assume 4 = A and 6 = B
Thus, A*B = B*A
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