wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

If f:RR such that f(x)=log3x then f1x is equal to

A
logx3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
3x
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
3x
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
31/x
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B 3x
f(x) is invertible for all positive x.
y=log3(x)
Taking antilogarithm on both sides, we get
3y=x.
Hence,
f1(x)=3x
Hence, option 'B' is correct.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Inverse of a Function
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon