Share
Explore BrainMass

The sum of positive 2 numbers is k. Show that the sum of their squares is at least (greater than or equal to) 1/2k^2.

Solution Preview

Suppose one positive number is x, then the other one is k-x because their sum is k.
So the sum of ...

Solution Summary

It is shown that the sum of the squares of two positive numbers (k) is at least (greater than or equal to) 1/2k^2.

$2.19