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If ax^2 + bx+ c = 0, a!=0, a, b, c in R ...

If `ax^2 + bx+ c = 0`, `a!=0`, `a, b, c in R` has distinct real roots in ( 1,2) then a and 5a + 2b + c have (A) same sign (B) opposite sign (C) not determined (D) none of these

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