The set of value of a for which both the...

The set of value of `a` for which both the roots of the equation `x^2-(2a-1)x+a=0` are positie is
(A) `{(2-sqrt(3))/2}`
(B) `{(2-sqrt(3))/2,(2+sqrt(3))/2}`
(C) `[(2+sqrt(3)/2,oo)`
(D) none of these

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The set of value of `a` for which both the roots of the equation `x^2-(2a-1)x+a=0` are positie is
(A) `{(2-sqrt(3))/2}`
(B) `{(2-sqrt(3))/2,(2+sqrt(3))/2}`
(C) `[(2+sqrt(3)/2,oo)`
(D) none of these