mathwizarddud Messages 25 Reaction score 0 Thread starter Jun 29, 2008 #1 Prove that if a, b, r, and s are positive reals and r + s = 1, then ar bs ≤ ra + sb.
morphism Science Advisor Homework Helper Messages 2,014 Reaction score 4 Jun 29, 2008 #2 http://en.wikipedia.org/wiki/Young's_inequality