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anushkaudeshan
 3 years ago
cos20.cos40.cos60.cos80 = 1/16
anushkaudeshan
 3 years ago
cos20.cos40.cos60.cos80 = 1/16

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anushkaudeshan
 3 years ago
Best ResponseYou've already chosen the best response.0cos20.cos40.cos60.cos80 = 1/16

estudier
 3 years ago
Best ResponseYou've already chosen the best response.320,40,80 is 1/8 ( http://en.wikipedia.org/wiki/Morrie%27s_law) so 1/8 *1/2 = 1/16

anushkaudeshan
 3 years ago
Best ResponseYou've already chosen the best response.0(sinasin2a+sin3asin6a+sin4asin13a)/(sinacos2a+sin3asin6a+sin4acos13a)= tan9a
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