Many students think they've solved a trig equation ... so to find the second solution, we need to use the rule in the second quadrant. From the graph of the function, we can see that we should ...

Here's another example to work through. This time you need to draw two right-angled triangles to help you with your working. If \(\sin p = \frac{3}{5}\) and \(\tan q = \frac{5}{{12}}\) where \(0 ...