Question

f(n) =2n^2 g(m) =1/3n
​

Answer 1

Answer:

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

Hence f(n

1

)=f(n

2

)⇒n

1

=n

2

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

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