If three positive real numbers `a, b, c` are in `AP` with `abc = 64,` then minimum value of `b` is:

If three positive real number a,b,c are in AP with abc =4 , then the minimum value of b is

If three positive real numbers a, b, c are in A.P. such that abc = 4, then the minimum value of b is

If three positive real numbers a,b,c are in AP such that abc=4, then the minimum value of b is

If three positive real numbers a,b,c are in AP such that abc=4, then the minimum value of b is

If three positive real numbers a,b,c are in A.P. such that abc=4, then the minimum value of b is

If three positive real numbers a,b,c are in A.P.sich that abc=4, then the minimum value of b is a..2^(1/3) b.2^(2) c.2^(1/2) d.2^(3/23)

If three positive real numbers a,b ,c are in A.P such that a b c=4 , then the minimum value of b is a) 2^(1//3) b) 2^(2//3) c) 2^(1//2) d) 2^(3//23)

If three positive real numbers a,b ,c are in A.P such that a b c=4 , then the minimum value of b is a) 2^(1//3) b) 2^(2//3) c) 2^(1//2) d) 2^(3//23)

If three positive real numbers a, b, c are in A.P and abc = 4 , then the minimum possible value of b is