1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: 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)
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook