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Algebra 2 Trigonometric functions (introduction)

Radian measure and the unit circle

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Questions
Question 1
180116
Define a \(\textbf{radian}\). Explain why one full revolution equals \(2\pi\) radians.
The angle whose subtended arc length equals the radius; \(2\pi\) radii wrap around a full circle, so one revolution \(= 2\pi\) rad

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