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Let A={1,2,3},\ B={4,5,6,7} and let f={(...

Let `A={1,2,3},\ B={4,5,6,7}` and let `f={(1,4),\ (2,5),\ (3,6)}` be a function from `A` to `B` . State whether `f` is one-one or not.

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`f={(1,4),(2,5),(3,6)}`

Here, different elements of the domain have different images in the co-domain. So, `f` is one-one.

So,`f`is one-one
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