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

3728 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

(1.) f(x)=x^3+3x^2-2x+15. (a.) find the differential of f(x) (b.) hence find the gradient of f(x) when x=6 (c.) is f(x) increasing or decreasing at this point?


Find the derivative, dy/dx, of y = 8xcos(3x).


Differentiaate the folowing equation with respect to x: y=4x^3-3x^2+9x+2


Express 2x^2 +8x +7 in the form A(x+B)^2 + C, where A, B and C are constants


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