Question 5 - A-Level Maths

Show that the equation $$\cot 2 \theta + \cot \theta = 2$$ can be expressed as a quadratic equation in $\tan \theta$.
Hence solve the equation $\cot 2 \theta + \cot \theta = 2$, for $0 < \theta < \pi$, giving your answers correct to 3 decimal places.