Trigonometry Examples

$\cos (\frac{π}{3}) - \cos (\frac{π}{4})$

The exact value of $\cos (\frac{π}{3})$ is $\frac{1}{2}$ .

$\frac{1}{2} - \cos (\frac{π}{4})$

The exact value of $\cos (\frac{π}{4})$ is $\frac{\sqrt{2}}{2}$ .

$\frac{1}{2} - \frac{\sqrt{2}}{2}$

The result can be shown in multiple forms.

Exact Form:

$\frac{1}{2} - \frac{\sqrt{2}}{2}$

Decimal Form:

$- 0.20710678 \dots$