Solving tan(theta)=2/5 - 2.62 radians

[Elitegamer]

Homework Statement

The tan(theta)=2/5

Homework Equations

The Attempt at a Solution

I forgot how, I had no clue so I looked in the solutions and it was 2.62 radians, I just don't know how they got that, I am not sure on what to do. Its for trigonometric forms of complex numbers.


Thanks for any help!

 

[BlackWyvern]

You don't have a calculator or something?
Usually that's the way to solve a problem like this, unless you want to iterate it...

 

[Elitegamer]

Whats do i type in? A friend told me to do the arctan of 2/5 but that just gives me some decimal.

 

[rock.freak667]

Is your calculator in DEG? if not, then put it in RAD