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Math Help - Inverse Trig compund identities?

  1. #1
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    Inverse Trig compund identities?

    Are there inverse trig identities, analagous to:

    sin(A+B)=sinAcosB+cosAsinB ?

    I know there are various identities dealing with the sum of two inverse trig functions, but I was wondering if there was a nice way to split up a compound variable, for want of a better word.

    If there are, please don't post a proof because I'd rather try and prove them myself.

    Thanks

    EDIT: Sorry for the typo in the title
    Last edited by phillips101; July 11th 2008 at 01:55 AM.
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