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the derivative of cos(x)
-sin(x)
the derivative of sin(x)
cos(x)
the derivative of tan(x)
sec²(x)
the derivative of sec(x)
sec(x)tan(x)
the derivative of cot(x)
-csc²(x)
the derivative of csc(x)
-csc(x)cot(x)
tan(x)
sin(x)/cos(x)
cot(x)
cos(x)/sin(x)