Trigonometry Examples

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

Step 1

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

$\cos (x) (2 \cos (x)) + \cos (x)$

Step 2

Multiply by $1$ .

$\cos (x) (2 \cos (x)) + \cos (x) \cdot 1$

Step 3

Factor $\cos (x)$ out of $\cos (x) (2 \cos (x)) + \cos (x) \cdot 1$ .

$\cos (x) (2 \cos (x) + 1)$