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Evaluate Sine, Cosine, Tangent with Double Angle Formulas

Evaluate Sine, Cosine, Tangent with Double Angle Formulas

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Evaluate: cos(2u) = cos squared u - sin squared u

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Evaluate: cos(2u) = cos squared u - sin squared u

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Evaluate Sine, Cosine, Tangent with Double Angle Formulas

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  1. 1 Rewrite as a double angle to prove sin 2(30) not equal 2sin 30
  2. 2 Evaluate: cos(2u) = cos squared u - sin squared u
  3. 3 Evaluate tangent problem
  4. 4 Using double angles with triangles
  5. 5 Evaluate double angles sin2x cos2x
  6. 6 Evaluate given co-functions

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