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OpenStudy (anonymous):
Find a value of theta, if theta has an interval of [Theta, 360 degrees], and theta has the given cofunction. cos theta = -1/2
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OpenStudy (anonymous):
angle in first quadrant whose cos is 1/2 is 60 now cosine is negative in 2nd and third quadrant theta is 180-60 = 120 and 180 + 60 = 240 degrees
OpenStudy (anonymous):
Thanks for the explanation :)
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