Question

Find u + v if u = (-4,7, 2) and v = (4,1, -3)

Answer 1

Answer: (0, 8, -1)

To get this answer, you add up the corresponding coordinates.

The x coordinates add to -4+4 = 0

The y coordinates add to 7+1 = 8

The z coordinates add to 2+(-3) = -1

Another way to express this is to consider

u = (a,b,c)

v = (d,e,f)

which add to u+v = (a+d,b+e,c+f)