Mathematik-Online problems: Problem 454: Proof of Inequalities within Norms

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	Mathematik-Online problems:
	Problem 454: Proof of Inequalities within Norms

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Proof:

a): $\mid \Vert a-c \Vert - \Vert b-c \Vert \mid \leq \Vert a-b \Vert$
b): $\mid \Vert a-b \Vert - \Vert c-d \Vert \mid \leq \Vert a-c \Vert + \Vert b-d \Vert$

(Authors: Höllig/Höfert)

see also:

automatisch erstellt am 18. 1. 2017