Question

Let u = <-5, 1>, v = <7, -4>. Find 9u - 6v.

Answer 1

What is \(\langle -5 \cdot 9 ~,~ 1 \cdot 9\rangle -\langle 7 \cdot 6 ~,~ -4 \cdot 6\rangle\)?

Answer 2

<-45, 9> - <42, -24>

Answer 3

is it <-87, 33> ?

Answer 4

Okay, now we just subtract components from both u and v appropriately. \[\langle -45 -42 ~,~ 9 - (-24)\rangle\]

Answer 5

You got it

Answer 6

thank you!!

Answer 7

Np :)