Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Need solution for RD Sharma Class 12 Chapter Functions Exercise 2.3 Question 3 maths textbook solution.

Need solution for RD Sharma Class 12 Chapter Functions Exercise 2.3 Question 3 maths textbook solution.

Answers (1)

Given : Here given that f(x)=\left | x \right |

To prove : Here we have to prove that

                f\; o\; f=f

Solution :

Here we have to compute

f\; o\; f (x)

We have ,

\begin{aligned} &(f \circ f)(x)=f(f(x)) \\ &=f(|x|) \\ &=|| x|| \\ &=|x| \\ &=f(x) \end{aligned}

So, (f \circ f)(x)=f(x) \forall x \in R

Hence, f\; o\; f=f

Posted by

infoexpert23

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

CBSE Board 2026 Exam LIVE: Class 10, 12 exams over; 12th physics analysis, answer key for set 1, 2 soon
anam-khan

Less bias, more risk? CBSE on-screen marking system leaves Class 12 students, teachers cautious but optimistic
anam-khan

CBSE Plans: Compulsory computing, AI in Classes 9, 10 syllabus; more skill subjects; 25% EWS quota review

Latest Question