Question

Let vector A=(1,2,3) and vector B=(3,4,5) be points in R^3. O denotes the origion, (0,0,0).

Determine the vectors OA, OB and AB. And then express AB in terms of OA and OB.

How do I go about doing this?

Answer 1

let vectors be points?

Answer 2

Between any two points P and Q, the vector PQ is defined to be
Q - P

So apply that rule these three points and you'll see the answer is quite easy.

Answer 3

Sorry, I didn't mean to write vectors in front of those letters. They're just points.