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Trig formulas
sin, cos, tan formulas
14
Mathematics
12th Grade
04/30/2009
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Term
sin2X
 Definition
2sinXcosX
Term
cos2X
 Definition
cos^2X - sin^2X; 2cos^2X - 1;
1 - 2sin^2X
Term
tan2X
 Definition
2tanX / 1-tan^2X
Term
sin^2X
 Definition
1 - cos2X / 2
Term
cos^2X
 Definition
1 + cos2X / 2
Term
tan^2X
 Definition
1 - cos2X / 1 + cos2X
Term
sinX
 Definition
1/cscX
Term
cosX
 Definition
1/secX
Term
tanX
 Definition
1/cotX
Term
tanX
 Definition
sinX/cosX
Term
cotX
 Definition
cosX/sinX
Term
sin^2X + cos^2X
 Definition
1
Term
1 + cot^2X
 Definition
csc^2X
Term
1 + tan^2X
 Definition
sec^2X
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