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Let a={1,2},B={0} then which of the foll...

Let `a={1,2},B={0}` then which of the following is correct Number of possible relations from `AtoB` is `2^0=1` Number of void relations from `AtoB` is not possible Number of possible relations from `AtoB` are 4 Number of possible relations are equal to `2^(n(A)+n(B))`

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