- #1
eme_girl
- 5
- 0
Prove that for any vectors a and b, |a-b| is less than or equal to |a| + |b|
I'm kind of lost, b/c i can't see a case where |a-b| would actually result in a value being less than |a| + |b|.
I've tried doing a proof that is similar, and when I was taught, the definition of absolute value was used to prove it.
I'm kind of lost, b/c i can't see a case where |a-b| would actually result in a value being less than |a| + |b|.
I've tried doing a proof that is similar, and when I was taught, the definition of absolute value was used to prove it.