Question

How do you find u+v and u-v given u=2i and v=j?

Answer 1

`u + v = 2 i + j`

`u - v = 2 i - j`

Explanation:

We have: `u = 2 i` and `v = j`

`=> u + v = 2 i + j`

and

`=> u - v = 2 i - j`