SOLUTION: is sin((11pi)/6) positive negative or zero

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Question 1161752: is sin((11pi)/6) positive negative or zero





Found 2 solutions by MathLover1, greenestamps:
Answer by MathLover1(20850) About Me  (Show Source):
Answer by greenestamps(13203) About Me  (Show Source):
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An angle of 11pi/6 is just short of 2pi = 12pi/6, so you are just short of a full revolution counterclockwise from 2pi, which is coterminal with 0.

So you are in the fourth quadrant, where x is positive and y is negative.

Sine is the y value, so sin(11pi/6) is negative.

ANSWER: negative