Please Solve RD Sharma Class 12 Chapter Function Exercise 2.4 Question 20 Maths Textbook Solution.
Answer:
Given:
and
Hint:
or
exists only if
or
is a bijection.
Solution:
is not one-one, since
and
have the same image under
.
is not a bijection. So,
does not exist.
Injectivity of:
So, is one-one.
Surjectivity of:
Range of
(Codomain of
)
is onto.
is a bijection. So,
exists.
Finding,