Question

v = -3i + 5j, w = 5i + 4k
Find w x v.

Answer 1

my answer is 20i+12j-25k but in the options is not there
12i + 20j + 25k

-20j + 15k

25i + 20j - 20k

-20i - 12j + 25k

Answer 2

what I'm doing wrong?

Answer 3

what u got is v X w

Answer 4

asked = w Xv

Answer 5

w X v = - v X w

Answer 6

my ans. is -20i+12j+25k

Answer 7

I find out how to do it. the correct answer is -20i - 12j + 25k.
Yo need to multiple W x V in that order right
Crossp([5,0,4],[-3,5,0]0

Answer 8

order matters...
so whats -(20i+12j-25k) = ??

Answer 9

yeah, right :)

Answer 10

Crossp([5,0,4],[-3,5,0] = [-20,-12,25]

Answer 11

I am confused in this

Answer 12

wxv is -20i+12j+25k

Answer 13

soory i was wrong -20i-12j+25k