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if a1,a2,a3,............an are +ve real numbers whose product is a fixed number "c",then min. value of a1+a2+.........an-1+2an=?
Dear ajinkya
given.
a1.a2.a3.............an =c
so use AM≥GM
(a1+a2+.........an-1+2an)/n ≥ ( 2a1.a2.a3.............an)1/n
≥ ( 2c)1/n
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