Trigonometry Examples

$\tan (70) - \frac{\sin (70)}{\cos (70)}$

Step 1

Rewrite $\tan (70)$ in terms of sines and cosines.

$\frac{\sin (70)}{\cos (70)} - \frac{\sin (70)}{\cos (70)}$

Step 2

Combine the numerators over the common denominator.

$\frac{\sin (70) - \sin (70)}{\cos (70)}$

Step 3

Subtract $\sin (70)$ from $\sin (70)$ .

$\frac{0}{\cos (70)}$

Step 4

Divide $0$ by $\cos (70)$ .

$0$