Precalculus Examples

$2 \cos (t) \tan (t)$

Step 1

Add parentheses.

$2 (\cos (t) \tan (t))$

Step 2

Reorder $\cos (t)$ and $\tan (t)$ .

$2 (\tan (t) \cos (t))$

Step 3

Rewrite $2 \cos (t) \tan (t)$ in terms of sines and cosines.

$2 (\frac{\sin (t)}{\cos (t)} \cos (t))$

Step 4

Cancel the common factors.

$2 \sin (t)$