Precalculus Examples

$5 \sin^{2} (x) x - 1 = 0$

Step 1

Reorder factors in $5 \sin^{2} (x) x - 1$ .

$5 x \sin^{2} (x) - 1 = 0$

Step 2

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

$x \approx 0.60979124, 2.87466672, 3.38704885, 6.10112646, 6.46005912, 9.27741977, 9.56985104$

Step 3