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

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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The correct Answer is:
Here , we see that , each element of .A have distinct image . So , it is one -one .
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