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tanθ - Quotient Identities
sinθ/cosθ
cotθ - Quotient Identities
cosθ/sinθ
cotθ - Reciprocal Identities
1/tanθ
cscθ - Reciprocal Identities
1/sinθ
secθ - Reciprocal Identities
1/cosθ
sin²θ + cos²θ
1
tan²θ + 1
sec²θ
1 + cot²θ
csc²θ
sin(a+b)
sin(a) cos(b) + cos(a) sin(b)
cos(a+b)
cos(a) cos(b) - sin(a) sin(b)
tan(a+b)
(tan(a) + tan(b)) / 1 - tan(a) tan(b)
sin(a-b)
sin(a) cos(b) - cos(a) sin(b)
cos(a-b)
cos(a) cos(b) + sin(a) sin(b)
tan(a-b)
(tan(a) - tan(b)) / 1 + tan(a) tan(b)
sin(2a)
2sin(a) cos(a)
cos(2a)
cos²(a)-sin²(a)
cos(2a)
2cos²(a)-1
cos(2a)
1-2sin²(a)
tan(2a)
2tan(a) / 1 - tan²(a)
y=sin^-1(x) Domain
[-1,1]
y=sin^-1(x) Range
[-pi/2,pi/2]
y=cos^-1(x) Domain
[-1,1]
y=cos^-1(x) Range
[0,pi]
y=tan^-1(x) Domain
(-infinit-infiniti)
y=tan^-1(x) Range
(-pi/2,pi/2)

Arccos

Arcsin

Arctan