JEE Advanced 2020 Mathematics question

MathematicsSequence and SeriesJEE Advanced 2020

Let be the minimum possible value of , where are real numbers for which . Let be the maximum possible value of , where are positive real numbers for which . Then the value of is

Answer: 8

Solution

By AM–GM, , with equality at . So . Again by AM–GM,

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Question ID VK-033780