Trigonometry Examples

$1 - 2 \cos (x) + \cos^{2} (x)$

Step 1

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$1 - 2 \cos (x) + \cos^{2} (x)$

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