Question

check the following functions for
oner-to-oneness and ontoness
i) .f: N----->N defined by f(n)=n2
ii) f: N----->N defined by f(n)=n2​

Answer 1

Step-by-step explanation:

f(n)=2n+3 is a linear function.

Hence f(n1 )=f(n2 )⇒n1=n2

Here Domain is N but range is set of all odd number −{1,3}

Hence f(n) is injective or one-to-one function.