Trigonometry Examples

$\cos (x) = \frac{12.3}{27.9}$

Step 1

Divide $12.3$ by $27.9$ .

$\cos (x) = 0.44086021$

Step 2

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

$x \approx 1.1142395 + 2 π n, 5.1689458 + 2 π n$ , for any integer $n$

Step 3

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$