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Trig Identities

TermDefinition
sin opp/hyp
cos adj/hyp
tan opp/adj
csc hyp/opp
sec hyp/adj
cot adj/opp
sin2x+cos2x=... 1
tan2x+1=... sec2x
1+cot2x=... csc2x
sin(A+B)=... sinAcosB±cosAsinB
cos(A+B)=... cosAcosB∓sinAsinB
tan(A+B)=... tanA±tanB / 1∓tanAtanB
sin(2x)=... 2sin(x)cos(x)
cos(2x)=... first: cos2x-sin2x *** second: 2(cos2x)-1 *** third: 1-2(sin2x)
tan(2x)=... 2tanx / 1-tan2x
Created by: abievans
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