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Basic Trigonometry Formulas App Quiz & e-Book Download - 14

MCQ:

Cosθ + cosπ =

  1. −2sin(θ + π/2)sin(θ-π/2)
  2. 2cos(θ + π/2)sin(θ-π/2)
  3. 2cos(θ + π/2)cos(θ-π/2)
  4. None of Above

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Basic Trigonometry Formulas App (Android & iOS)

Basic Trigonometry Formulas App (Android & iOS)

College Math App (Android & iOS)

College Math App (iOS & Android)

8th Grade Math App (Android & iOS)

8th Grade Math App (Android & iOS)

10th Grade Math App (Android & iOS)

10th Grade Math App (iOS & Android)