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sin(x)
cos(x)
cos(x)
-sin(x)
tan(x)
sec²(x)
cot(x)
-csc²(x)
sec(x)
tan(x)sec(x)
csc(x)
-cot(x)csc(x)
sin²(x) + cos²(x)
1
tan²(x) + 1
sec²(x)
1 + cot²(x)
csc²(x)
sin(x+y)
sin(x)cos(y) + cos(x)sin(y)
sin(x-y)
sin(x)cos(y) - cos(x)sin(y)
cos(x+y)
cos(x)cos(y) - sin(x)sin(y)
cos(x-y)
cos(x)cos(y) + sin(x)sin(y)
sin(2x)
2sin(x)cos(x)
cos(2x)
cos²(x) - sin²(x) = 1 - 2sin²(x) = 2cos²(x) - 1