Mathematics reference Limits	18Ma4 MathRef
Properties of limits.
Legend.
limx -> c u means "the limit as x approaches c of u," a, c, and n are constants, u and v are functions of x.
Basic.
limx -> c a = a	equation 1
limx -> c x = c	equation 2
limx -> c xn = cn	equation 3
limx -> c (a u) = a limx -> c u	equation 4
limx -> c (u +- v) = limx -> c u +- limx -> c v	equation 5
limx -> c (u v) = (limx -> c u) (limx -> c v)	equation 6
limx -> c (u/v) = limx -> c u/limx -> c v, limx -> c v != 0	equation 7
limx -> c (un) = (limx -> c u)n	equation 8
Trigonometry.
limx -> c sin x = sin c	equation 9
limx -> c cos x = cos c	equation 10
limx -> c tan x = tan c	equation 11
limx -> c cot x = cot c	equation 12
limx -> c sec x = sec c	equation 13
limx -> c csc x = csc c	equation 14
Special limits.
limx -> 0 (sin x/x) = 1	equation 15
limx -> 0 [(1 - cos x)/x] = 0	equation 16
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