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OpenStudy (anonymous):

What is the reference angle of -(14pi)/5 in radians?

OpenStudy (luigi0210):

Reference angel is the one closest to the x-axis: So how many more radians are needed? |dw:1386477036968:dw| One complete rotation is equal to 10pi/5 radians, and half is 5pi/5 So solve this: \[\LARGE \frac{15 pi}{5}-\frac{14 pi}{5}\] How many are left? btw, reference angels are ALWAYS positive

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