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Mathematics 8 Online
OpenStudy (anonymous):

Unit circle help please. Find the exact value.

OpenStudy (anonymous):

\[\sin -\pi/6\]

OpenStudy (anonymous):

-1/2

OpenStudy (anonymous):

explanation please?

OpenStudy (anonymous):

ok. do you have a picture of the unit in front of you? it will be easier to explain if you do. instead of going to sin pi/6 which is 1/2 you are going the same distance but in the negative direction. on the unit circle it is (cos,sin) for the values

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