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1. The number of elements of the set Ais 5 and B={1,2,3,4).The number of elements of AxB is(a) 9 (b) 16 (c) 20 (d) 25 |
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Answer» the no.of elements in SET A are 5 and in B are 4 so A×B=5×4=20 c is the answer |
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