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17 Cards in this Set
- Front
- Back
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tan θ =
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cot θ =
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sin² θ + cos² θ =
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1
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1 + tan² x =
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sec² x (Pythagorean 2)
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1 + cot² x =
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csc² x (Pythagorean 3)
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sin(x + π/2) =
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cos x (Shift negative X)
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cos(x – π/2) =
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sin x (Shift positive X)
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sin(–x) =
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–sin x (even Symmetry)
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cos(–x) =
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cos x (odd Symmetry)
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tan(–x) =
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–tan x (even Symmetry)
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sin(u ± v) =
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(sin u)(cos v) ± (cos u)(sin v) (Sum or Diff of 2 angles)
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sin 2u =
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2 sin u cos u (Double Angle)
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cos 2u =
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cos² u – sin² u (Double Angle)
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tan 2u =
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2 tan u ∕ 1 – tan² u (Double Angle)
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sin² u =
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½(1 – cos 2u) (Power Reduction sin)
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cos² u =
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½(1 + cos 2u) (Power Reduction cos)
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sin u ⁄ 2 =
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± √(1 – cos u) ∕ √2 (Half Angle)
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