- #1
JennyInTheSky
- 8
- 0
While reading my text, I came across an inequality that I couldn't convince myself of...
For real numbers a,b: [tex]\left|a+b[/tex]|<= |a|+|b|. Is this something proven? Or is it an axiom or something?
For real numbers a,b: [tex]\left|a+b[/tex]|<= |a|+|b|. Is this something proven? Or is it an axiom or something?