Trigonometry Examples

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

Step 1

Raise $\cos (2 x)$ to the power of $1$ .

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

Step 2

Raise $\cos (2 x)$ to the power of $1$ .

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

Step 3

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

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

Step 4

Add $1$ and $1$ .

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