Q. 364.7( 3 Votes )

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.

Answer :

Given:-


(i) A = {1, 2, 3}


(ii) B = {4, 5, 6, 7}


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


each element has a unique image


hence ,f is one-one


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