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Trigonometry Examples

Popular Problems

Find the Exact Value cos(arccos(2.1))

$\cos (\arccos (2.1))$

Step 1

The functions cosine and arccosine are inverses.

$2.1$

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

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