Trigonometry Examples

$\cos (2 x) = \cos (x - 1)$

Step 1

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

$x \approx 0.33333333 + 2 π n, 2.42772843 + 2 π n, 4.52212353 + 2 π n, 5.2831853 + 2 π n$ , for any integer $n$

Step 2