Let S be the set of all possible integral values of \lambda in the interval (-3, 7) for which the roots of the quadratic equation \lambdax^2+13x+7=0 are all rational numbers. Then the sum of the elements in S is

TS EAMCET 10-Sep-2020 Shift 1 Solved Paper

Section: Mathematics

Question : 11 of 160

Marks: +1, -0

Let S be the set of all possible integral values of λ in the interval (-3, 7) for which the roots of the quadratic equation λx2+13x+7=0 are all rational numbers. Then the sum of the elements in S is

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