Trigonometry Examples

$\cos (3 x) = 4 \cos^{3} (x) - 3 \cos (x)$

Step 1

Graph each side of the equation.

$y = \cos (3 x)$

$y = 4 \cos^{3} (x) - 3 \cos (x)$

Step 2

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