LA4 marksYear: 2020MediumCBSE Class 10
polynomialszeroesreciprocal-zeroes
Question
Without actually calculating the zeroes, form a quadratic polynomial whose zeroes are reciprocals of the zeroes of the polynomial 5x2+2x−3.
Solution
1
Let zeroes of given quadratic polynomial be α and β. α+β=5−2 and αβ=5−3
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Now, α1+β1=αββ+α=5−35−2=32
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Required Polynomial is x2−32x−35 or 3x2−2x−5
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