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OpenStudy (channingparkman):

cos^2(2x)-sin^2(2x)=0 identify if it is an identity and why

Hayhayz (hayhayz):

Hi Welcome to OpenStudy! Please post your question in the correct subject for others to help! :)

OpenStudy (anonymous):

lolololol

jigglypuff314 (jigglypuff314):

Hello @channingparkman and Welcome to OpenStudy! :) You have asked this question in the OpenStudy Feedback section.. I believe you would get much better and faster help if you tried asking this question in our Math section instead ^_^ http://openstudy.com/study#/groups/Mathematics

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