Trigonometry Question
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Grade 11 Trigonometry CCSS: HSF-TF.A.4
On the unit circle, an angle of [math](7π)/4[/math] has the same cosine value as which other angle between 0 and 2π?
- [math]π/4[/math]
- [math](3π)/4[/math]
- [math](5π)/4[/math]
- [math](7π)/4[/math] only
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