Save guides, add subjects and pick up where you left off with your BBC account. It may be necessary to use Pythagoras' theorem and trigonometry to solve a problem. The trigonometric ratios can be ...

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 ...