Question

If u = 8 + 4i and v = 3i + 6, then what is u – v ?
A)2 + 2i
B)5– 2i
C)1 + i
D)2 + i
E)2 – i

Answer 1

u = 8 + 4i
v = 3i + 6

u-v
= (8 + 4i) - (3i + 6)
= 8 - 6 + 4i - 3i
= i + 2
So, your answer is D.