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If 1 lies between the roots of the quadr...

If 1 lies between the roots of the quadratic equation `3x^2-(3sintheta)x-2cos^2theta=0`, then : (A) `-pi/3 lt theta lt(5pi)/3` (B) `npilttheta lt 2npi` (C) `2npi+pi/6 lt theta lt 2npi+(5pi)/6` (D) none of these

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