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Trig Identities

basic trig identities

QuestionSolution
sin(x) 1/csc(x)
cos(x) 1/sec(x)
tan(x) 1/cot(x)
csc(x) 1/sin(x)
sec(x) 1/cos(x)
cos2(x) + sin2(x) 1
cos2(x) 1-sin2(x)
sin2(x) 1-cos2(x)
1 + tan2(x) sec2(x)
tan2(x) sec2(x)-1
cot2(x)+1 csc2(x)
cot2(x) csc2(x)-1
sin(2x) 2sin(x)cos(x)
cos(2x) cos2(x)- sin2(x)
Created by: rachsusann
 

 



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