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If the set A contains 5 elements and the...

If the set `A` contains 5 elements and the set B contains 6 elements, then the number of one-one and onto mappings from A to B is `720` (b) 120 (c) 0 (d) none of these

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Number of elements in set `A=n(A)=5`
Number of elements in set `B=n(B)=6`
As, the number of bijection from `A` into `B` can only be possible when provided `n(A)≥n(B)`.
But here, we can see, `n(A) So, the number of bijection i.e. one-one and onto mappings from `A` to `B=0`
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