1. ## Values of tan

What values does x have?

$tanx=(-square root 3) / 3$

x1 = ?
x2 = ?

Thank you!

2. Hello, carbonite!

What values does $\theta$ have? . $\tan\theta \:=\:-\frac{\sqrt{3}}{3}$
You're expected to know the trig values for 30° 60°, and 45°.
. . Or be able to figured them out . . .

We have: . $\tan\theta \:=\:-\frac{1}{\sqrt{3}} \:=\:\frac{opp}{adj}$

This could arise from two possible situations . . .
Code:
         *
:\
_ : \
√3 :  \
:   \ θ
---+----*-------
-1
And we see that: . $\theta_1 \:=\:120^o \:=\:\tfrac{2\pi}{3}$

Code:
              |
|
|  1
----*----+-------
|\θ  :   _
| \  : -√3
|  \ :
|   \:
|    *
And: . $\theta_2 \:=\:\text{-}\;\!60^o \:=\:\text{-}\tfrac{\pi}{3}$