Precalculus Examples

$y = 2 \tan (\frac{4 π}{3})$

Step 1

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant.

$y = 2 \tan (\frac{π}{3})$

Step 2

The exact value of $\tan (\frac{π}{3})$ is $\sqrt{3}$ .

$y = 2 \sqrt{3}$

Step 3

The result can be shown in multiple forms.

Exact Form:

$y = 2 \sqrt{3}$

Decimal Form:

$y = 3.46410161 \dots$