Review — Difficulty 1/10

Trigonometry · Unit circle and radian measure

Review skills for this standard. Write answers where shown.

Together with a parent

1. sin(30°) = ___ 2. cos(π/4) = ___ 3. Unit circle: angle 4π/4. Coordinates ( , ) ___

Written review

1. sin(60°) = ___ 2. cos(π/3) = ___ 3. Unit circle: angle 6π/4. Coordinates ( , ) ___ 4. Period of y = sin(2x): ___ 5. Amplitude of y = 9cos x: ___ 6. Solve sin x = 1/2 on [0, 2π). ___

_See printable PDF for diagram._

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Skills checklist

• [ ] Evaluates trig functions at standard angles
• [ ] Uses unit circle reasoning

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