SOLUTION: solve the equation for 0 ≤ theta ≥ 2pi. write your answer as multiple of pi, if possible
2sin theta (cos theta) + cos theta=0
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Question 697952: solve the equation for 0 ≤ theta ≥ 2pi. write your answer as multiple of pi, if possible
2sin theta (cos theta) + cos theta=0
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
solve the equation for 0 <= theta <= 2pi.
write your answer as a multiple of pi, if possible
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2sin(theta)*cos (theta) + cos(theta) = 0
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Factor:
cos(theta)[2sin(theta)+1] = 0
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cos(theta) = 0 or sin(theta) = -1/2
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theta = pi/2 or (3/2)pi or (7/6)pi or (11/6)pi
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Cheers,
Stan H.
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