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15 Cards in this Set

  • Front
  • Back
Sin of Angles: 0, 30, 45, 60, 90
√0/2, √1/2, √2/2, √3/2, √4/2
Cosine of Angles: 0, 30, 45, 60, 90
√4/2, √3/2, √2/2, √1/2, √0/2
Tangent of Angles: 0, 30, 45, 60, 90
0, √3/3, 1, √3, ∞
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)
Tan(2a)
2tan(a)/1-tan²(a)
Sin(3a)
3cos²(a)•sin(a)-sin³(a)
Cos(3a)
cos³(a)-3sin²(a)•cos(a)
Sin(a/2)
±√1-cos(a)/2