Trigonometry Examples

$\cos (x - \frac{π}{2}) = \sin (x)$

Step 1

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

$x \approx 0.1, \frac{1}{5}, \frac{2}{5}, \frac{1}{2}, - \frac{12}{5}, - \frac{5}{2}, - \frac{13}{5}$

Step 2

The result can be shown in multiple forms.

Exact Form:

$x \approx 0.1, \frac{1}{5}, \frac{2}{5}, \frac{1}{2}, - \frac{12}{5}, - \frac{5}{2}, - \frac{13}{5}$

Decimal Form:

$x \approx 0.1, 0.2, 0.4, 0.5, - 2.4, - 2.5, - 2.6$

Mixed Number Form:

$x \approx 0.1, \frac{1}{5}, \frac{2}{5}, \frac{1}{2}, - 2 \frac{2}{5}, - 2 \frac{1}{2}, - 2 \frac{3}{5}$

Step 3