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Unit-Circle Coordinates
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ACCUPLACER
AAF.187 Unit-Circle Coordinates
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The angle theta = -19pi/2 may include more than one full rotation. Which ordered pair gives (cos theta, sin theta)?
A
(1/2, -sqrt(3)/2)
B
(-1/2, -sqrt(3)/2)
C
(sqrt(3)/2, -1/2)
D
(0, 1)
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