Using Double and Half-Angle Formulas

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How to use double and half-angle formulas with trigonometric functions.
  1. Thaddeus Wert
  2. mathematics
  3. college algebra
  4. trigonometry
  5. double-angle
  6. half-angle
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This 6 minute video just taught me what my teacher failed to in 2 weeks, and you sir just saved my grade. For that I am forever grateful

wilsonmorris