Precalculus Examples

$x = 2 \cos (x)$ , $y = 3 \sin (x)$

Step 1

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

$x \approx 1.02986652$

Step 2

Replace all occurrences of $x$ in $y = 3 \sin (x)$ with $1.02986652$ .

$y = 3 \sin (1.02986652)$

$x \approx 1.02986652$

Step 3