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Trig

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xoxegiso's version from 2015-05-12 13:01

Section

Question Answer
secx1/cosx
cscx1/sinx
cotx1/tanx
tanxsinx/cosx
cotxcosx/sinx
cos^2(x)1-sin^2x
cos^2x+sin^2x1
sin^2x1-cos^2x
1+tan^2xsec^2x
sec^2x-1tan^2x
sec^2x-tan^2x1
cot^2x+1csc^2
csc^2x-cot^2x1
csc^2x-1cot^2x
cos2xcos^2x-sin^2x
sin2x2sinxcosx
tan2x2tanx/(1-tan^2x)
memorize

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