Trigonometry Examples

$2 \cos^{2} (x) + 5 \sin (x) - 4 = 0$

Step 1

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

$x = \frac{π}{6} + 2 π n, \frac{5 π}{6} + 2 π n$ , for any integer $n$

Step 2