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Type: Multiple-Choice
Category: Trigonometry
Level: Grade 11
Standards: HSF-TF.A.3
Tags: HSF-TF.A.3
Author: HTPhysics
Created: 2 weeks ago

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Trigonometry Question

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Grade 11 Trigonometry CCSS: HSF-TF.A.3

For triangle ABC below, what is the value of cos(π/4)?, its angle measures are either 45°−45°−90° or 30°−60°−90°.
Right Triangle ABC v1
  1. [math]1/2[/math]
  2. -[math]1/2[/math]
  3. 1
  4. [math](√2)/2[/math]
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