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fc3857 Group TitleBest ResponseYou've already chosen the best response.1
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 one year ago

ucreategames Group TitleBest ResponseYou've already chosen the best response.0
http://www.wolframalpha.com/input/?i=cos^2%28x%29+%2B+2+cos+x+%2B+1+%3D+0
 one year ago

fc3857 Group TitleBest ResponseYou've already chosen the best response.1
I still don't completely understand.
 one year ago
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