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Reported Question / Answer
Q.) (Z,*) is a group with a*b = a b 1 ∀ a, b ∈Z. The inverse of a is
1)
-2
2)
0
3)
-a-2
4)
a-2
5)
NULL
Answer :
3
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Message / Correct Answer / Suggestion
Human Verification : Answer 2 + 3 = ?
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