Question

if f(x)=(2x+1)/x find f^-1(x)

Answer 1

Answer:

f^-1 x = 1 / (x - 2).

Step-by-step explanation:

Let y = (2x + 1)/x

Find x in terms of y:

xy = 2x + 1

xy - 2x = 1

x(y - 2) = 1

x = 1 / (y - 2)

So f^-1 x = 1 / (x - 2).