teraexa SG To find inverse function, the general method goes like this... Let y = f(x). Then to find inverse function, let x be the subject instead of y, so manipulate until you get x = ....
hiphop2009 SG http://www.analyzemath.com/inversefunction/Tutorials.html the website shows a v gd example.
LinkageII SG f(x) = x^2 +2x y = (x+1)^2 -1 x = +- squareroot(y+1) -1 so.. inverse function is +- squareroot(x+1) -1 but first you must check whether your function is 1 to 1. in this case it isnt so there must be restricted domain
