Precalculus Examples

$\cos (θ) \tan (θ)$

Step 1

Reorder $\cos (θ)$ and $\tan (θ)$ .

$\tan (θ) \cos (θ)$

Step 2

Rewrite $\cos (θ) \tan (θ)$ in terms of sines and cosines.

$\frac{\sin (θ)}{\cos (θ)} \cos (θ)$

Step 3

Cancel the common factors.

$\sin (θ)$