A) \[a(b-1)\] is even
B) \[a(b-1)\] is odd
C) \[(a-1)\,(b-1)\] is even
D) \[(a-1)\,b\] is even
Correct Answer: A
Solution :
As, a is even and \[(b-1)\] will be even, so \[a(b-1)=\]even integer.You need to login to perform this action.
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