Quantcast
Channel: Active questions tagged real-analysis - Mathematics Stack Exchange
Viewing all articles
Browse latest Browse all 9155

$|a-b|

$
0
0

For $a,b\in\Bbb R$ prove $|a-b|<E$ iff $a-E<b<a+E$.

I am unsure how to start this proof. I think it might have something to do with the reverse triangle inequality but I am stuck.


Viewing all articles
Browse latest Browse all 9155

Trending Articles



<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>