Precalculus Examples

$4 \sin (2 x) = 4 \cos (x + 1)$

Step 1

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

$x \approx 0.19026544 + 2 π n, 2.28466054 + 2 π n, 2.57079632 + 2 π n, 4.37905564 + 2 π n$ , for any integer $n$

Step 2