Question

HELP WILL GIVE MEDAL
Let u = <-9, 4>, v = <8, -5>. Find u - v.

Answer 1

Yay, vectors!

Answer 2

Basically we have \[u=-9i+4j\] and \[v = 8i-5j\] where the i, j are unit vectors.

Putting it simply, we have \[u-v \implies <-9+8,4-5>\]

Answer 3

Wow you made it so easy thankyou!

Answer 4

I think he wrote u+v though :p

Answer 5

I did, sorry haha! Thanks @myininaya

Answer 6

its wrong?

Answer 7

Oh only the bottom is lol

Answer 8

This is the one I had done, I think you can figure it out with the minus sign :) \[u \color{red}{+} v \implies <-9+8,4-5>\]

Answer 9

so it will be -17, 9?

Answer 10

Good! We then have \[<-17,9>\]