Trigonometry Examples

$\cos (x) - 1 = \cos (2 x)$

Step 1

Graph each side of the equation.

$y = \cos (x) - 1$

$y = \cos (2 x)$

Step 2

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$