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Precalculus Examples

Popular Problems

Find the Exact Value cos(arccos(0.57))

$\cos (\arccos (0.57))$

Step 1

The functions cosine and arccosine are inverses.

$0.57$

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

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