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Prove that (1- cos(pi)/(8))(1-cos(3 pi)/(8))(1-cos(5 pi)/(8))(1=cos(7 pi)/(8))=(1)/(8)
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Prove that (1- cos(pi)/(8))(1-cos(3 pi)/(8))(1-cos(5 pi)/(8))(1=cos(7 pi)/(8))=(1)/(8)

User ThiagoAlves
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1 Answer

13 votes

Explanation:

1&$)&(5$6$5*-_+_7&'+&-^€=%

User Janrito
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