f(x) = 2 / (x^2 + 2). Find g, the inverse of f.

Rewrite as y = 2 / (x^2 + 2). Swap all x and y symbols to create x = 2 / (y^2 + 2). Rearrange for y to reach y=g(x)=sqrt( (2-2x) / x ).

AR
Answered by Alfie R. Maths tutor

3742 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

The circle (x-3)^2 +(x-2)^2 = 20 has centre C. Write down the radius of the circle and the coordinates of C.


How would you go about integrating a function which has an exponential and a cos/sin term?


Integrate the following function by parts and reduce it to it's simplest form. f(x) = ln(x).


Find the exact gradient of the curve y=ln(1-cos2x) at the point with x-coordinate π/6


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning