Book: RS Aggarwal - Mathematics
Chapter: 3. Functions
Subject: - Class 11th
Q. No. 5 of Exercise 3B
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5
If f(x) = 
and 
then prove that f{(x)} = 
, when it is given that 
.
Given: f(x) =
, where 
Need to prove: f{f(x)} = 
when 
Now placing f(x) in place of x
⇒ 
⇒ 
⇒ 
, where 
[Proved]
