Precalculus Examples

$(\cos (x - 1)) (\cos (x - 1))$

Step 1

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

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

Step 2

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

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

Step 3

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

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

Step 4

Add $1$ and $1$ .

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