how do you prove that (a+b+c)/3 is greater than or equal to cubed root (abc)
l have solved it already for just 2 variables a and b but l can't see how to do it for 3 variables outside of cubing both sides and taking RHS over and prove that that will always be greater than zero
Is this the right approach
l have solved it already for just 2 variables a and b but l can't see how to do it for 3 variables outside of cubing both sides and taking RHS over and prove that that will always be greater than zero
Is this the right approach