Trigonometry Examples

$\cos (2) x + 3 \cos (x) = 1$

Step 1

Evaluate $\cos (2)$ .

$0.99939082 x + 3 \cos (x) = 1$

Step 2

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

$x \approx - 9.55290208, - 9.01491761, - 4.42770107, - 1.43629425, 1.06839018$

Step 3