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            From: BurtonBoarders4@yahoo.com Subject: Trigonometry

Problem 4 :  Verify:

1. sin^2 x + sin^2 (Pie/2 - x) = 1

2. sin^2alpha - sin^4alpha = cos^2alpha - cos^4alpha

 

 

 

                 ANSWER:


 

 

 

 

 

 

 

                      

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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