Please Solve RD Sharma Class 12 Chapter Function Exercise 2.4 Question 13 Maths Textbook Solution.
Answer:
Given:
defined by
.
Hint:
One-one means every domain has a distinct range. One means every image has some preimage in the domain function.
Solution:
We have,.
The function defined by
.
Let such that
then
is one-one.
Let , then
.
The function is onto if there exists
such that
.
Thus, for any , there exists
such that
is onto.
So, is one-one and onto function.