Question

How do you find the component form of `v=1/2(3u+w)` given `u=2i-j, w=i+2j`?

Answer 1

`7/2 i - j`

Explanation:

Substituting `u and w` into `v`:

`v=1/2(3(2i-j)+i+2j)= 1/2(6i-3j+i+j)`

`-> = 1/2(7i-2j)= 7/2i-j`