Precalculus Examples

$y = 10 \sin (x) + \sin (x) \cdot \sin (\frac{x}{10})$ , $x = 10 \cos (x) + \cos (x) \cdot \sin (\frac{x}{10})$

Step 1

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

$x \approx - 4.25279869, - 1.74983511, 1.42939381, 5.23426655, 7.12179869$

Step 2