Question

If three positive real numbers a,b,c are in
a.p. with abc=4, then minimum value of b is

Answer 1

1 or 2 can be the answer

Answer 2

Answer: 2^(2/3)

Explanation:

A.M.>or=G.M.

So,

(a+b+c)/n >or= (abc)^(1/n)

(a+b+c)/3 >or= (abc)^(1/3)

(a+b+c)/3 >or= 4^(1/3)

(a+b+c)/3 >or= 2^(2/3)