SOLUTION: find all solutions in the interval [0,2pi) 2sin^2 theta + sin theta = 0 Please help me. thank you.

Algebra ->  Trigonometry-basics -> SOLUTION: find all solutions in the interval [0,2pi) 2sin^2 theta + sin theta = 0 Please help me. thank you.      Log On


   

Question 1008597: find all solutions in the interval [0,2pi)
2sin^2 theta + sin theta = 0
Please help me. thank you.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
find all solutions in the interval [0,2pi)
2sin^2 theta + sin theta = 0
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Factor::
sin(t)*(2sin(t) + 1) = 0
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sin(t) = 0 or sin(t) = -1/2
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t = 0 or pi OR t = (7/6)pi or (11/6)pi
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Cheers,
Stan H.
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