Suppose that y.4/ m D mym and y.4/ n D nyn. Apply the
Chapter , Problem 22(choose chapter or problem)
Suppose that y.4/ m D mym and y.4/ n D nyn. Apply the method of proof of Theorem 2 and integrate by parts twice to show that .m n/ Z L 0 ym.x/yn.x/ dx D " yn.x/d 3ym dx3 ym.x/d 3yn dx3 dyn dx d 2ym dx2 C dym dx d 2yn dx2 #L
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