Question

Write an equation for f-1(x) given f(x) = x^3 – 2.

Answer 1

Explanation:

Let f(x) be denoted by y,thus y= -3x+2

Now interchange x and y,it becomes x= -3y+2

Solve for y,

y

=

2

−

x

3

This is

f

−

1

x