Trigonometry Question
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Grade 11 Trigonometry CCSS: HSF-TF.A.4
Which of the following statements is true based on the unit circle?
- cos(θ) = cos(-θ)
- sin(θ) = sin(-θ)
- tan(θ) = tan(θ + π)
- cos(θ) = cos(θ + 2π)
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