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Trigonometric ratios of Allied Angles Quiz App & e-Book PDF Download - 339

MCQ 339:

Sin(α-90°) =

  1. −cosα
  2. cosecα
  3. −secα
  4. sinα

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Trigonometric ratios of Allied Angles App (Android & iOS)

Trigonometric ratios of Allied Angles App (Android & iOS)

College Math App (Android & iOS)

College Math App (iOS & Android)

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6th Grade Math App (Android & iOS)

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10th Grade Math App (iOS & Android)