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Type: Multiple-Choice
Category: Trigonometry
Level: Grade 11
Standards: HSF-TF.A.4
Author: nsharp1
Created: 4 years ago

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Trigonometry Question

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Grade 11 Trigonometry CCSS: HSF-TF.A.4

Which of the following are equal to cos(4π9)? Choose all that apply.
  1. cos(-5π9)
  2. cos(13π9)
  3. cos(22π9)
  4. cos(-23π9)