Provide solution for RD Sharma maths class12 Chapter Functions exercise 2.1 question 4
is neither one-one nor onto.
One-one function means every element in the domain has a distinct image in the co-domain.
Onto function means every element in the co-domain has at least one pre image in the domain of function.
We need to prove that is neither one-one nor onto.
First of all we check the function with one-one,
So,f is not one-one.
Now, we go for onto function,
Codomain of Range of . (both are not same)
Hence, f is not onto.