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Tangent to radians?

  1. Nov 24, 2007 #1
    1. The problem statement, all variables and given/known data
    The tan(theta)=2/5

    2. Relevant equations

    3. 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 dont know how they got that, im not sure on what to do. Its for trigonometric forms of complex numbers.

    Thanks for any help!
  2. jcsd
  3. Nov 25, 2007 #2
    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...
  4. Nov 25, 2007 #3
    Whats do i type in? A friend told me to do the arctan of 2/5 but that just gives me some decimal.
  5. Nov 25, 2007 #4


    User Avatar
    Homework Helper

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