Precalculus Examples

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Step 1

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

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Step 2

The exact value of $\sin (0)$ is $0$ .

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Step 3

Set up the coordinates $(\cos (θ), \sin (θ))$ .

$(1, 0)$

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