JEE Main Mathematics question

Mathematics Sequence and Series JEE Main

Let be any two positive values of for which , and are in GP. The minimum value of is

(A)
(B)
(C)
(D)None of theseCorrect

Answer: (D)

Solution

GP condition: , i.e. . With : , i.e. , so or . The positive solutions are

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Question ID VK-008166