Trigonometry Examples

$\cos (4 x) = 0.8 x - 12$

Step 1

Graph each side of the equation. The solution is the x-value of the point of intersection.

$x \approx 14.60933117, 15.39581326, 15.89977624$

Step 2

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