- #1
Askhwhelp
- 86
- 0
Prove |x|+|y| ≤ |x+y| + |x-y| for all real numbers x and y.
Some ideas I have is let a = x+y and b = x-y and apply triangle inequity
Could anyone give me some direction?
Thanks
Some ideas I have is let a = x+y and b = x-y and apply triangle inequity
Could anyone give me some direction?
Thanks