Trigonometry Examples

$\cos (4 x) = 1.2 x - 1.5$

Step 1

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

$x \approx 0.61110856, 1.14716916, 1.78803104$

Step 2

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