# How do you calculate the #tan^-1(sqrt3/3)#?

##### 1 Answer

Nov 25, 2015

#### Answer:

#### Explanation:

Another way of asking this question is: "the tangent of *what angle* gives me

We know that

So then,

Note that even though tangent is positive in the third quadrant, and that the tangent of an infinite amount of coterminal angles is