Trigonometry Examples

$2 - 2 \sin^{2} (x)$

Step 1

Simplify with factoring out.

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Step 1.1

Factor $2$ out of $2$ .

$2 (1) - 2 \sin^{2} (x)$

Step 1.2

Factor $2$ out of $- 2 \sin^{2} (x)$ .

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

Step 1.3

Factor $2$ out of $2 (1) + 2 (- \sin^{2} (x))$ .

$2 (1 - \sin^{2} (x))$

$2 (1 - \sin^{2} (x))$

Step 2

Apply pythagorean identity.

$2 \cos^{2} (x)$

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