Trigonometry Examples

$y = - \tan (\frac{π}{2})$

Step 1

Rewrite $\tan (\frac{π}{2})$ in terms of sines and cosines.

$y = - \frac{\sin (\frac{π}{2})}{\cos (\frac{π}{2})}$

Step 2

The exact value of $\cos (\frac{π}{2})$ is $0$ .

$y = - \frac{\sin (\frac{π}{2})}{0}$