If a 1 , a 2 , ........... , a n are positive real numbers whose product is a fixed…
Mathematics · JEE Advanced · NTA Exams — Progression and Series
If a1, a2, ..........., an are positive real numbers whose product is a fixed number c, then the minimum value of a1 + a2 + ......... + an–1 + 2an is
- n (2c)1/n
- (n + 1)c1/n
- 2nc1/n
- (n + 1) (2c)1/n.
Answer
(D) ( n + 1) (2 c ) 1/ n .
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