(a)[3]
Find a formula for $f^{-1}(x)$.
(b)[2]
Show that $\frac{2}{3} + \frac{2}{3(3x - 1)}$ can be written as $\frac{2x}{3x - 1}$.
(c)[1]
State the set of values taken by $f$.
Mathematics 9709 · AS & A Level · Functions
Functions — practice question
The function $f$ is given by $f(x) = \frac{2x}{3x - 1}$ when $x > \frac{1}{3}$.