Trigonometry Examples

$\frac{\cos^{4} (x)}{\cos^{2} (x)}$

Step 1

Factor $\cos^{2} (x)$ out of $\cos^{4} (x)$ .

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

Step 2

Cancel the common factors.

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Step 2.1

Multiply by $1$ .

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

Step 2.2

Cancel the common factor.

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

Step 2.3

Rewrite the expression.

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

Step 2.4

Divide $\cos^{2} (x)$ by $1$ .

$\cos^{2} (x)$