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 ...

and trigonometric identities. Current ALEKS Math Placement 55 or higher, or a B- or higher in MATH.1200/1225 Precalculus Mathematics I, or passed RHR course, NONC.PCLC1.

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