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Mathematics 18 Online
OpenStudy (anonymous):

calculus help pl ..

OpenStudy (anonymous):

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OpenStudy (anonymous):

i dd not know that ,,... is it proved ,,,

OpenStudy (anonymous):

I guess 1/(1+cosx)=1/(2cos^2(x/2))

OpenStudy (anonymous):

Not tan(x/2)

OpenStudy (anonymous):

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