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28 Cards in this Set
 Front
 Back
cscθ =

1/sinθ


tanθ =

sinθ/cosθ


cotθ =

1/tanθ OR cosθ/sinθ


secθ =

1/cosθ


sin^2θ + cos^2θ =

1


1 + tan^2θ =

sec^2θ


1 + cot^2θ =

csc^2θ


sin(θ) =

sinθ


cos(θ) =

cosθ


tan(θ) =

tanθ


sin(π/2  θ)

cosθ


cos(π/2  θ)

sinθ


tan(π/2  θ)

cotθ


sin A/a = sin B/b =

sin C/c


a^2 = b^2 + ...

c^2  2bc cosA


b^2 = a^2 + c^2 ...

 2ac cosB


c^2 = a^2 + b^2 ...

 2ab cosC


sin(x+y) =

sinxcosy + cosxsiny


sin(xy) =

sinxcosy  cosxsiny


cos(x+y) =

cosxcosy  sinxsiny


cos(xy) =

cosxcosy + sinxsiny


tan(x+y) =

tanx + tany/1  tanxtany


tan(xy) =

tanx  tany/1 + tanxtany


sin2x =
(Double Angle Formula) 
2sinxcosx
(Double Angle Formula) 

cos2x =

cos^2x  sin^2x
OR 2cos^2x  1 OR 1  2sin^2x 

tan2x =

2tanx/1  tan^2x


sin^2x =

1  cos2x/2


cos^2x =

1 + cos2x/2
