Trigonometry Question
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Grade 11 Trigonometry CCSS: HSF-TF.A.2
For the point (57,2√67) on the unit circle centered at the origin, let angle θ be the angle in standard position whose terminal arm intersects this point after the angle has made between 2 and 3 full rotations around the origin. What is the value of cos(θ)?
- 2√67
- 57
- 52√6
- 2√65