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Let A={-2,2,-3,3},B={1,4,9,16} and f: A ...

Let `A={-2,2,-3,3},B={1,4,9,16} and f: A rarr B` be given by `f(x) =x^(2)`, show that `f` is a many -one mapping.

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hence f is a mapping from A to B
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