Question

How do you find u+v and u-v given u=i+j and v=2i-3j?

Answer 1

See the explanation.

Explanation:

`u ->i+j`
`ul(v->2i-3j) larr" add"`
`" "3i-2j`

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

`u ->i+j`
`ul(v->2i-3j) larr" subtract"`
`" "-i+4j`