Question

Find 2u - 3v.

u=6i, v=j
a. 121-3j
b.6i-j
c. 12i+3j
d.6i-3j
e. -12i-3j

Answer 1

2u - 3v = 12i- 3j/C

Explanation:

So it says U = 6i, if you do 2 x 6i you get 12 i

Then 3 x v which is j gets you 3 j

If you add the 2 answers together you get 12i - 3j