Mathematics for IGCSE & O level - Functions (Section 2 - No. 21)
When finding the inverse of a function, what algebraic operation is the same?
x with y
y with f(x)
x with f^-1(x)
x with f(x)
Forklaring
Swapping x and y, where y=f(x), leads to swapping x and f^-1(x)