1. 

   fnalkhamis Member

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   Trig Problem

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   How would you evaluate a problem like this:
   
   sin(cos^-1 3/5 + cos^-1 5/13)
   
   The "cos^-1" is an inverse cosine.

    

   fnalkhamis, Apr 16, 2012

   #1
2. 

   waltrulz Forum Addict

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   Trig Problem

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   It's an angle addition problem.

    

   waltrulz, Apr 18, 2012

   #2

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