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Precalculus Examples

Popular Problems

Find the Value Using the Unit Circle sin(15)

$\sin (15)$

Step 1

The unit circle can be used to find the values for exact angles.

Not an exact value

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

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