Purpose: Identify gaps before the unit test. Your teacher will provide descriptive feedback.
Duration: 20 minutes.
Question 1
Evaluate sin(11Ο/6) and cos(5Ο/3) exactly. Show the reference angle and quadrant.
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Question 2
Prove the double angle formula: sin(2x) = 2sinxΒ·cosx, starting from sin(x+x).
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Question 3
Why do we use radians in advanced math instead of degrees? What advantage does radian measure have?
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## Teacher Feedback Template
**Strengths:** "You demonstrated solid understanding of [specific concept]."
**Next Steps:** "To prepare for the unit test, focus on [specific topic]. Review [specific video]."
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π Teacher Feedback
Strengths:
Next Steps: