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Type: Multiple-Choice
Category: Trigonometry
Level: Grade 10
Standards: HSF-IF.C.7c
Author: GracieHelpTeaching
Created: 2 years ago

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Trigonometry Question

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Grade 10 Trigonometry CCSS: HSF-IF.C.7c

Which of the following identities is true for all values of θ?
  1. sin(θ + π/2) = cos(θ)
  2. cos(θ + π/2) = tan(θ)
  3. tan(θ + π/2) = -cot(θ)
  4. cot(θ + π/2) = -tan(θ)