Q. 284.0( 2 Votes )

Mark the correct A. onto but not one-one

B. one-one but not onto

C. one-one and onto

D. neither one-one nor onto

Answer :

Given function f: Z Z defined as



For x = 3, f(x) = 0


For x = 5, f(x) = 0


But 3 ≠ 5


So, f is not one-one.


Y=f(x)


x ϵ R y ϵ R


Domain = Range


Hence, f is not one-one but onto.

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