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[ Suppose a in R,a!=-1/2 .Let alpha,beta...

[ Suppose` a in R`,`a!=-1/2` .Let `alpha,beta` be roots of `(2a+1)x^(2)-ax+a-2=0 `If `alphalt1ltbeta`, then [ (`a) (1)/(7)(6-2sqrt(23))ltalt1 (b) (1)/(7)(6-2sqrt(23))ltalt(1)/(2) (c) (1)/(2)ltalt(1)/(7)(6+2sqrt(23))`( d) none of these ]]

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