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

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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 Apps (Android & iOS)

Basic Trigonometry Formulas App

College Math Apps (Android & iOS)

College Math App

6th Grade Math Apps (Android & iOS)

6th Grade Math App

9th Grade Math Apps (Android & iOS)

9th Grade Math App