y2o2
Prove that (cos pi/7)(cos 2pi/7)(cos 4pi/7)=(1/8)



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Physicist.ALI
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I can prove it via a rectangularshaped machine called calculator.

y2o2
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@Physicist.ALI
Lol

Physicist.ALI
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I do deserve a medal dude ^_^

y2o2
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I deserve a "Thank you"

Physicist.ALI
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hahahahaha thanx there