There are some trigonometric identities which you must remember in order to simplify trigonometric expressions when required. When you are asked to prove something, ignore the right hand side of ...

Let’s look at how to use trigonometric identities to calculate missing sides. \({sin~θ} = \frac {opposite} {hypotenuse}\) \({cos~θ} = \frac {adjacent} {hypotenuse ...

Glasgow studio Tangent Graphic has been working with Edinburgh International Book Festival since 2009. Each year, the studio creates a fresh visual identity for the event inspired by that year’s theme ...