9709 P31 - Nov 2015 - Q3 - 6 marks
135
The angles \(\theta\) and \(\phi\) lie between \(0^\circ\) and \(180^\circ\), and are such that \(\tan(\theta - \phi) = 3\) and \(\tan \theta + \tan \phi = 1\). Find the possible values of \(\theta\) and \(\phi\).
Solutions locked. Please sign in with access to view them.