Question

Please help me to solve it with proper steps and detail how it came . I have answer for it but not able to solve . please tell​

Answer 1

Answer:

It is given that A={1,2,3}, B={4,5,6,7}.

f:A→B is defined as f=(1,4),(2,5),(3,6).

∴f(1)=4,f(2)=5,f(3)=6

It is seen that the images of distinct elements of A

under f are distinct

Hence, function f is one-one

Step-by-step explanation:

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