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United StatesPrecalculusQuick questions

Unit 3: Trigonometric and Polar Functions

Quick questions on Sine and cosine function values - AP Precalculus Unit 3

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Evaluate cos⁡7π6\cos\frac{7\pi}{6}. [1 point]
What is q2?
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If sin⁡θ=12\sin\theta = \frac{1}{2} and θ\theta is in Quadrant II, what is cos⁡θ\cos\theta? [1 point]

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