Trigonometry Examples

$3 \cos (2 t) - \cos (t) = - 3$

Step 1

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

$t \approx 1.40334824 + 2 π n, \frac{π}{2} + 2 π n, \frac{3 π}{2} + 2 π n, 4.87983705 + 2 π n$ , for any integer $n$

Step 2