- #1

- 49

- 2

I'm having a small problem with Schwarz inequality, |u⋅v|≤||u||||v||

the statement is true if and only if cosΘ≤1 !!, I'm familiar with this result but how could it be more than 1?

what is so special in higher dimensions that it gave the ability for cosine to be more than 1? why and how?