Minimum Value of Algebraic Expression
CAT 2020 Slot 2 · Quantitative Ability · Hard · Algebra
This is a hard Quantitative Ability question from the CAT 2020 Slot 2 paper. It tests Algebra. The full answer key and a step-by-step explanation are below — try it yourself first, then reveal the solution.
If and are positive real numbers satisfying , then the minimum possible value of is
Answer
2704
Explanation
Expand the expression: Since , is maximized when . Max value of . To minimize , we need to minimize , which occurs when is maximum, i.e., . Substitute :
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