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Let N be the set of numbers and two func...

Let N be the set of numbers and two functions f and g be defined as `f,g:N to N` such that
`f(n)={((n+1)/(2), ,"if n is odd"),((n)/(2),,"if n is even"):}`
and `g(n)=n-(-1)^(n)`. Then, fog is

A

both one-one and onto

B

one-one but not onto

C

neither one-one nor onto

D

onto but not one-one

Text Solution

Verified by Experts

The correct Answer is:
D
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