上游充廷大￥ The Envelope Theorem 3 SHANGHAI IIAO TONG UNIVERSITY ©Prove: ·Constraints: ·h,(x(a,a)=0 take the derivative of a on both sides ·ah,(K,a)k(a_oh(,a multiplied by A and summed Ox da Ba -立 =1 Ox da i=l Ba 2016/12/22Prove: • Constraints: • take the derivative of a on both sides • multiplied by λ and summed 2016/12/22 13   00 0 00 1 1 ( ), 0 (, ) (, ) ( ) (,) () (,) i i i l l i i i i i i h aa ha ha d a da a h a da h a da a                    x x x x x xx x x The Envelope Theorem 3