Question

Dados os números complexos z1=4-3i, z2=6-3i,z3+5i,z4=-7+2i calcule

A)z1+z2
B)z2-z1
C)z3-z4
D)z1.z2
E)z2.z3

Answer 1

A) 4-3i+6-3i
10-6i

B) 6-3i-(4-3i)
6-3i-4+3i
2

C) fiz o z3=+5i
+5i-(-7+2i)
5i+7-2i
7+3i

D) (4-3i).(6-3i)
24-12i-18i+9i^2 i^2=-1
24-30i+9(-1)
24-9-30i
15-30i

E) (6-3i).(5i)
30i-15i^2
30i-15(-1)
15+30i