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17 Cards in this Set

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sin^2(x) + cos^2(x) =
1
tan^2(x) + 1 =
sec^2(x)
1 + cot^2(x) =
csc^2(x)
sin(-x) =
-sin(x)
cos(-x)=
cos(x)
sin (x + y) =
sin(x)cos(y) + cos(x)sin(y)
cos (x + y) =
cos(x)cos(y) - sin(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)
tan(x+y) =
tan(x) + tan(y)/
1 - tan(x)tan(y)
tan(x-y) =
tan(x) - tan(y) /
1 + tan(x)tan(y)
sin(2x) =
2 sin(x)cos(x)
A. cos(2x) =
cos^2(x) - sin^2(x)
C. cos(2x) =
2cos^2(x) - 1
B. cos(2x) =
1 - 2sin^2(x)
cos^2(x) =
1 + cos(2x)/
2
sin^2(x)
1 - cos(2x)/
2