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Basic Trigonometry Formulas MCQs App Download & e-Book PDF - 14

MCQ: 14

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)

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College Math App (iOS & Android)

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7th Grade Math App (Android & iOS)

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9th Grade Math App (iOS & Android)