Question

Determine whether the given vectors are orthogonal. 3i-2j and -8i-12j

Answer 1

dot product will be 0 if the vectors are orthogonal

Answer 2

check whether \(\langle 3, ~-2\rangle \bullet \langle-8,~-12 \rangle \) is 0

Answer 3

the i and j don't have anything to do with the problem?

Answer 4

it would just be 3*-8 and -2*-12? so -24+24=0?

Answer 5

yes since the dot product is 0, the given vectors are orthogonal/perpendicular

Answer 6

\(i \bullet i = j \bullet j = 1\)

Answer 7

so we dont need to wry about them whenn u take dot product

Answer 8

oh, ok. Thanks!

Answer 9

u wlc !