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Isometry metric spaces help pleaaaaaase

image.jpegHiya,

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?

Cheers, would be super-helpful
Original post by number23
image.jpegHiya,

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?

Cheers, would be super-helpful


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.
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number23
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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
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.

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