CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

If f(x)=x+23x1, then f(f(x)) is

A
x
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
x
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1x
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
1x
No worries! We‘ve got your back. Try BYJU‘S free classes today!
E
0
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A x
Given, f(x)=x+23x1
Therefore, f{f(x)}=f(x+23x1)=x+23x1+23(x+23x1)1
=x+2+6x23x+6(3x1)=7x7=x

flag
Suggest Corrections
thumbs-up
1
mid-banner-image
mid-banner-image
Join BYJU'S Learning Program
Select...
similar_icon
Related Videos
thumbnail
lock
Definition of Function
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
Select...