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OpenStudy (anonymous):
sin(theta/2) = -root(2)/2 this has one answer i believe and is in the third quadrant on the unit circle. radians 5pie/4 however when i check it on my calculator i get error no sign change. could this have no solution?
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OpenStudy (loser66):
|dw:1398663774100:dw|
OpenStudy (loser66):
|dw:1398663893766:dw|
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