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Just a quick equation (sin^3)

  1. Sep 17, 2009 #1
    1. The problem statement, all variables and given/known data

    Solve the equation x = (1.66x10^28)/(sin^3(45))

    2. Relevant equations


    3. The attempt at a solution

    My attempt is really non existent, since I haven't had to work with sin^3 before, I haven't even seen it before this assignment. Basiclly I'm working out the mass of a binary star using the sin^3 method, and this is the last stage. The rest of the question has nothing to do with this bit I'm stuck on, so I don't think it's worth posting. Can anyone tell me how I'd go about solving this equation? Thanks!
  2. jcsd
  3. Sep 17, 2009 #2


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    Staff: Mentor

    Isn't [tex]sin^3(A) = sin(A)*sin(A)*sin(A)[/tex] ?

    http://thesaurus.maths.org/mmkb/entry.html?action=entryById&id=2723 [Broken]

    You should be able to just calculate x with your calculator, I believe...
    Last edited by a moderator: May 4, 2017
  4. Sep 17, 2009 #3
    Haha, not my brightest moment ever. Thanks for clearing that up!
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