x Turn on thread page Beta
 You are Here: Home >< Maths

Isometry metric spaces help pleaaaaaase watch

1. Hiya,

Ive attached the question, its pretty short and I dont think the proof is long but i cant apply the definition of an isometry to it

Could you take me through it?

2. (Original post by number23)
Hiya,

Ive attached the question, its pretty short and I dont think the proof is long but i cant apply the definition of an isometry to it

Could you take me through it?

Always best to post maths questions in the maths subforum, rather than this umbrella forum.

That said. Since the isometry must be true for all a,b. Let a=0. Hopefully this will suggest a possible isometry to you.
3. (Original post by ghostwalker)
Always best to post maths questions in the maths subforum, rather than this umbrella forum.

That said. Since the isometry must be true for all a,b. Let a=0. Hopefully this will suggest a possible isometry to you.
Hi, the mods moved it here when i first posted it :/

Ok ill have a think along those lines
4. (Original post by number23)
Hi, the mods moved it here when i first posted it :/
Cool. I'll have a word.

Ok ill have a think along those lines
A little further additional - if required.

Spoiler:
Show

What's the obvious mapping for "0" under the isometry

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: October 28, 2015
Today on TSR

Negatives of studying at Oxbridge

What are the downsides?

Poll
Useful resources

Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

How to use LaTex

Writing equations the easy way

Study habits of A* students

Top tips from students who have already aced their exams

Chat with other maths applicants