Trigonometric Functions
by
Joe Gaines
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Trigonometric Functions
tan(x)=sin(x)/cos(x)
sin(x)/cos(x)
cot(x)=1/tan(x)
sec^2(x)=tan^2(x)+1
cos^2(x)+sin^2(x)=1
sin(2x)=2sin(x)cos(x)
csc(x)=1/sin(x)
csc^2(x)=1+cot^2(x)
cos(2x)=1-sin^2(x)
sec(x)=1/cos(x)
cos(2x)=2cos^2(x)-1
