Trigonometry Examples

$r = 5 \cos (0)$

Step 1

Simplify $5 \cos (0)$ .

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Step 1.1

The exact value of $\cos (0)$ is $1$ .

$r = 5 \cdot 1$

Step 1.2

Multiply $5$ by $1$ .

$r = 5$

$r = 5$

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