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sin
1/csc
cos
1/sec
tan
1/cot
cot
1/tan
csc
1/sin
sec
1/cos
tan
sin/cos
cot
cos/sin
sin2 + cos2
1
tan2 + 1
sec2
cot2 + 1
csc2
sin(A ± B)
sinAcosB ± cosAsinB
cos(A - B)
cosAcosB + sinAsinB
cos(A + B)
cosAcosB - sinAsinB
sin(2θ)
2sin(θ)cos(θ)
cos(2θ)
cos2θ - sin2θ
tan(90 - θ)
cot(θ)
tan(A + B)
(tanA + tanB)/(1 - tanAtanB)
tan(A - B)
(tanA - tanB)/( 1 + tan AtanB
tan(2θ)
(2tanθ)/(1 - tan2θ)