Trigonometry Examples

$\tan (x) = \frac{x}{9}$

Step 1

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

$x \approx 0, - 3.51381677, 3.51381677, - 6.94006577, 6.94006577, - 10.27628998, 10.27628998$

Step 2