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sin 0
0
cos 0
1
tan 0
0
sin π/6
1/2
sin π/4
√2/2
sin π/3
√3/2
sin π/2
1
cos 0
1
cos π/6
√3/2
cos π/4
√2/2
cos π/3
1/2
cos π/2
0
tan 0
0
tan π/6
√3/3
tan π/4
1
tan π/3
√3
tan π/2
Undefined
sin θ
1/csc θ
cos θ
1/sec θ
tan θ
1/cot θ
tan θ
sin θ/cos θ
cot θ
cos θ/sin θ
cos^2 θ + sin^2 θ
1
1 + tan^2 θ
sec^2 θ
cot^2 θ + 1
csc^2 θ
sin (α ± β)
sin α cos β ± cos α sin β
cos (α ± β)
cos α cos β ∓ sin α sin β
tan (α ± β)
tan α ± tan β / 1- tan α tan β
sin 2θ
2 sin θ cos θ
cos 2θ
cos^2 θ - sin^2 θ
tan 2θ
2 tan θ / 1 - tan^2 θ
sin α sin β
1/2 [ cos (α - β) - cos (α + β) ]
cos α cos β
1/2 [ cos (α - β) + cos (α + β) ]
sin α cos β
1/2 [ sin (α + β) + sin (α - β) ]
cos α sin β
1/2 [ sin (α + β) - sin (α - β) ]
sin α + sin β
2 sin ( α + β / 2 ) cos ( α - β / 2 )
sin α - sin β
2 cos ( α + β / 2 ) sin ( α - β / 2 )
cos α + cos β
2 cos ( α + β / 2 ) cos ( α - β / 2 )
cos α - cos β
-2 sin ( α + β / 2 ) sin ( α - β / 2 )
Author
Anonymous
ID
81839
Card Set
t5
Description
Trig Special Values and Identities
Updated
4/26/2011, 7:08:44 AM
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