An unusually easy proof of vector.

athrun200 · Sep 18, 2011

Homework Statement

See the attachment.

Homework Equations

The Attempt at a Solution

It seems this proof is trivial, too easy that I am not sure if I do it correctly.

HallsofIvy · Sep 18, 2011

Yes, it is too trivial

You start by saying [itex]||u||_\infty= |u_n|[/itex]. You can't do that [itex]||u||_\infty[/itex] is the largest component, not necessarily the nth component

You can say [itex]||u||_\infty\le |u_n|[/itex]. Does that help?

An unusually easy proof of vector.

Homework Statement

Homework Equations

The Attempt at a Solution

Attachments

Discussion

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An unusually easy proof of vector.

Homework Statement

Homework Equations

The Attempt at a Solution

Attachments

Discussion

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