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College Math e-Book's MCQs - Complete

Online Math Learning MCQs App Free Download & e-Book - 668

MCQ:

If α,β,γ are the angles of a triangle ABC, then cos(α + β) =

  1. sinγ
  2. −cosγ
  3. cosγ
  4. −sinγ

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Online Math Learning App (Android & iOS)

Online Math Learning App (Android & iOS)

College Math App (Android & iOS)

College Math App (iOS & Android)

9th Grade Math App (Android & iOS)

9th Grade Math App (Android & iOS)

10th Grade Math App (Android & iOS)

10th Grade Math App (iOS & Android)