Precalculus Examples

$\tan (\arccos (0))$

Step 1

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

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

Step 2

The functions cosine and arccosine are inverses.

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

Step 3

The expression contains a division by $0$ . The expression is undefined.

Undefined