# What is the reference angle for θ = 210◦ ? Using that reference angle, determine the vaules for the six trigonometric functions of 210◦.

Reference angle is

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The reference angle for θ = 210° is 30°. Using this reference angle:

sin(210°) = -sin(30°) = -1/2 cos(210°) = cos(30°) = √3/2 tan(210°) = -tan(30°) = -√3/3 csc(210°) = -csc(30°) = -2 sec(210°) = sec(30°) = 2/√3 cot(210°) = -cot(30°) = -√3

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