NDA Government Jobs Exams

If α and β are the roots of the equation x^2 + bx + c = 0, then what is the value of α^–1 + β^–1 ?

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NDA Other Question

If the sum of the roots of a quadratic equation is 3 and the product is 2, then the equation is The area of a rectangle whose length is five more than twice its width is 75 square unit. The length is
(a) 5 unit (b) 10 unit (c) 15 unit (d) 20 unit