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Math Help - spherical triangle problem

  1. #1
    Junior Member
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    Jun 2011
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    [solved] spherical triangle problem

    This is not a homework problem, it's part of a practial engineering problem that I'm trying to solve. I have been struggling with it for a few hours already. I know I should use the Napier rules, but somehow I can't figure it out yet.

    I've got a right spherical triangle in which angle A and side c are known. What is the formula for side b?

    Last edited by corsica; January 10th 2012 at 08:30 AM.
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  2. #2
    Junior Member
    Joined
    Jun 2011
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    Re: spherical triangle problem

    Ok, after some more digging through the internet I think I managed to find the solution:
    \tan(b)=\tan(c)\cos(A)

    Everyone thanks for reading and thinking about this nevertheless!
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