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Calculus Help!

  1. Oct 1, 2007 #1
    1. The problem statement, all variables and given/known data
    evaluate
    arcsin(cos(7pi/5))


    2. Relevant equations
    x-pi/2=7pi/5


    3. The attempt at a solution
    sorry don't know where to start.
     
  2. jcsd
  3. Oct 1, 2007 #2
    What do you mean by evaluate? What does this have to do with calculus? Could you make this a little more clear, maybe by posting what work you have, even if it is wrong?
     
  4. Oct 2, 2007 #3
    cos(theta+pi/2)=-sin(theta) and then you should be able to determine what the arcsin will give you

    or you could take your 7pi/5 and then add pi/2 and get -sin(theta)
     
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