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Supposedly easy arcsine problem

  1. Oct 15, 2008 #1
    1. The problem statement, all variables and given/known data

    find x if sin(x)=1/5

    2. Relevant equations

    x=arcsin(1/5)= ??something in closed form maybe??

    3. The attempt at a solution

    This actually isnt my homework. A student im tutoring in differential calculus came to me with this problem and im convinced it is a typo. Just for certainty, is there a closed form for this? I started messing around with complex numbers and series... so i thought it might be time to ask here.
    Last edited: Oct 15, 2008
  2. jcsd
  3. Oct 15, 2008 #2
    so i just want to confirm that it is not really a fair and square Cal 1 problem....
  4. Oct 15, 2008 #3


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    Science Advisor
    Homework Helper

    I doubt you are going to find a neater form for that. It's arcsin(1/5).
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