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Within a single full rotation, the sine of an angle is one half at which two angles?
Aπ/3 and 2π/3
Bπ/6 and 7π/6
Cπ/6 and 5π/6
Dπ/3 and 5π/3
Answer & Solution
Correct answer: C. π/6 and 5π/6
Sine is positive in the first and second quadrants, so the angles are π/6 and π - π/6 = 5π/6.
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