(b) Show that x. y < ||x|| ||y||- [Hint: If x, y # 0, let a = , 6= and use the fact that ||ax + by | 2 0.] (This is known as the Cauchy-Schwarz Inequality) (c) Show that ||x+y|| < ||x||+||y||. [Hint: Compute (x+y) · (x+y) and apply part (b).] (d) Show that d is a metric.
(b) Show that x. y < ||x|| ||y||- [Hint: If x, y # 0, let a = , 6= and use the fact that ||ax + by | 2 0.] (This is known as the Cauchy-Schwarz Inequality) (c) Show that ||x+y|| < ||x||+||y||. [Hint: Compute (x+y) · (x+y) and apply part (b).] (d) Show that d is a metric.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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