Provide solution for RD Sharma maths class12 Chapter Functions exercise 2.1 question 2 sub question (iii)
is not one-one and onto function.
One-one function means every element in the domain has a distinct image in the co-domain.
Onto function means every element in the codomain has at least one pre image in the domain of function.
We need to find the one-one function
Here have the same image x
Also have the same image z
Therefore, is not one-one.