Precalculus Examples

$\cos (0.9 + 2 π) + (0.9 + 4 π)$

Step 1

Remove parentheses.

$\cos (0.9 + 2 π) + 0.9 + 4 π$

Step 2

Add $0.9$ and $2 π$ .

$\cos (7.1831853) + 0.9 + 4 π$

Step 3

Add $\cos (7.1831853)$ and $0.9$ .

$1.52160996 + 4 π$

Step 4

Add $1.52160996$ and $4 π$ .

$14.08798058$

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