Question

Use the given vectors to find the indicated quantities.
u=<-4,-4> v=<0,3> w=<3,-1>
(a) (u.v)w (b) 5u.v

Answer 1

u.v = 0 -12 = -12

is that spose to be a (u.v) .w?

Answer 2

its a scalar, i see it now lol

Answer 3

-12<3,-1> = <-36,12>

Answer 4

oh ok I wasn't sure how to multiply the w in there

Answer 5

5<-4,-4> OR <-20,-20>
< 0 , 3 > < 0, 3>
--------- ------------
5 (0 -12) = -60 0 -60 = -60

Answer 6

since the dot product makes a saclar amount; it is sacaled into the w :)

Answer 7

brxsin hymell nyxlbrppt

Answer 8

trying to get all my typos out at once lol

Answer 9

ha ha very nice! lol crazy finger days huh? lol thank you I appreciate the help:)