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OpenStudy (anonymous):
Please help-- find all solutions of the equation in the interval [0, 2pi) 2sin^2x-sin x-3=0 answer in radians
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OpenStudy (anonymous):
let sin x=t 2t^2-t-3=0
OpenStudy (anonymous):
t=-1,3/2
OpenStudy (anonymous):
t=3/2 is not possible
OpenStudy (anonymous):
answers will be
OpenStudy (anonymous):
3pi/2 is answer
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OpenStudy (anonymous):
thanks a lot for your help;)
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