GATE CS 2016 Set 2 — Question 5
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General Aptitude → Quantitative Aptitude → Ratios, Percentages, Powers, Exponents & Logarithms
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Question
In a quadratic function, the value of the product of the roots is 4. Find the value of
Correct answer
(B) 4ⁿ
Solution
Given the product of roots .
We need to find the value of:Rewrite the denominator:Substitute this back into the expression:Since , the value is .
We need to find the value of:Rewrite the denominator:Substitute this back into the expression:Since , the value is .
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