Trigonometry Examples

$x + 4 (\cos (x)) = 0$

Step 1

Multiply $4$ by $\cos (x)$ .

$x + 4 \cos (x) = 0$

Step 2

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

$x \approx - 1.25235323, 2.13333225, 3.59530486$

Step 3