Trigonometry Examples

$\cos (0) \tan (0)$

Step 1

Rewrite in terms of sines and cosines, then cancel the common factors.

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Step 1.1

Reorder $\cos (0)$ and $\tan (0)$ .

$\tan (0) \cos (0)$

Step 1.2

Rewrite $\cos (0) \tan (0)$ in terms of sines and cosines.

$\frac{\sin (0)}{\cos (0)} \cos (0)$

Step 1.3

Cancel the common factors.

$\sin (0)$

Step 2

The exact value of $\sin (0)$ is $0$ .

$0$