SOLUTION: Find the value of csc(-210) without a calculator

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Question 1144578: Find the value of csc(-210) without a calculator
Answer by greenestamps(13200) About Me  (Show Source):
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-210 degrees is clockwise 30 degrees past 180 degrees, so we have a 30 degree reference angle in quadrant II.

Sine and therefore cosecant are positive in quadrant II.

Sin(30) = 1/2; so sin(-210) = 1/2; so csc(210) = 2.