If a, b, c are positive such that #ab^2c^3 = 64# then the least value of #(1/a + 2/b + 3/c)# is?
A) # 6#
B) #2#
C) #3#
D) #32#
A)
B)
C)
D)
2 Answers
Aug 24, 2017
I got C
Explanation:
Note that
#a/2 + b/2 + c/2 = 1/2 + 2/2 + 3/2 = 2 +1 = 3#
Please let me know if this is the desired answer.
Hopefully this helps!
Aug 24, 2017
See below.
Explanation:
Using inequalities
we get to a particular case
now making