Precalculus Examples

$r = 1 - 2 \sin (190)$

Step 1

Simplify each term.

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Step 1.1

Evaluate $\sin (190)$ .

$r = 1 - 2 \cdot - 0.17364817$

Step 1.2

Multiply $- 2$ by $- 0.17364817$ .

$r = 1 + 0.34729635$

$r = 1 + 0.34729635$

Step 2

Add $1$ and $0.34729635$ .

$r = 1.34729635$

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