Trigonometry Examples

$x = \frac{9.9}{\tan (2.1)}$

Step 1

Separate fractions.

$x = \frac{9.9}{1} \cdot \frac{1}{\tan (2.1)}$

Step 2

Rewrite $\tan (2.1)$ in terms of sines and cosines.

$x = \frac{9.9}{1} \cdot \frac{1}{\frac{\sin (2.1)}{\cos (2.1)}}$

Step 3

Multiply by the reciprocal of the fraction to divide by $\frac{\sin (2.1)}{\cos (2.1)}$ .

$x = \frac{9.9}{1} \cdot \frac{\cos (2.1)}{\sin (2.1)}$

Step 4

Convert from $\frac{\cos (2.1)}{\sin (2.1)}$ to $\cot (2.1)$ .

$x = \frac{9.9}{1} \cot (2.1)$

Step 5

Divide $9.9$ by $1$ .

$x = 9.9 \cot (2.1)$

Step 6

Multiply $9.9$ by $\cot (2.1)$ .

$x = - 5.78999328$