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In which of the following cases, given * is a Binary operation on the set S? (A) S={1,2,3,6,18}, a*b=ab(B) S= {1,-2,3,2,-4}, a*b=|b|(C) S=Z,a*b=a+b²(P) S=N ,a*b=a-b |
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Answer» ONG>ANSWER: hard Step-by-step explanation: but not impossible BEST of luck |
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