Trigonometry Examples

$x^{2} + 12^{2} = 15^{2}$

Step 1

Raise $12$ to the power of $2$ .

$x^{2} + 144 = 15^{2}$

Step 2

Raise $15$ to the power of $2$ .

$x^{2} + 144 = 225$

Step 3

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

$x = - 9, 9$

Step 4