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OpenStudy (anonymous):

Trig identities (I know you love them) Does sin^2(x) = 1-cos^2(x) or 1-cos(2x)/2

OpenStudy (anonymous):

1-cos^2(x)

OpenStudy (anonymous):

sin^2(x) +cos^2(x) =1

OpenStudy (anonymous):

thank buddy

OpenStudy (anonymous):

^*thanks

OpenStudy (anonymous):

PS : Nobody likes them ! :) :)

OpenStudy (anonymous):

haha :D

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