Trigonometry Examples

$\cos (\arccos (\frac{4}{3}))$

Step 1

The functions cosine and arccosine are inverses.

$\frac{4}{3}$

Step 2

The result can be shown in multiple forms.

Exact Form:

$\frac{4}{3}$

Decimal Form:

$1.\overline{3}$

Mixed Number Form:

$1 \frac{1}{3}$

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