1. Sep 22, 2012 #1

   biochem850

   

   Does anyone know of websites where I can find many problems on the topic in the title line (my textbook has far too few)?
   
   Thanks!

    

   biochem850, Sep 22, 2012
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3. Sep 23, 2012 #2

   NasuSama

   

   Yes, there are some sites that might help. See:
   
   http://www.sparknotes.com/math/trigonometry/trigonometricidentities/problems_1.html
   http://www.vitutor.com/geometry/trigonometry/identities_problems.html
   http://www.sosmath.com/trig/Trig5/trig5/trig5.html

    

   NasuSama, Sep 23, 2012

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