Question

efetue as multiplicação

A) (3+2i) (3-i)=

B) (1+i) (2+3i)=

C) (1+3i) (2i)=

D) (-2i) (-3+5i)=

E) (2+3i) (4-2i)=

F) (5+i) (3-2i)=

Answer 1

a) 9-3i+6i-2i^2 = 2i^2+3i+9

b) 2+3i+2i+3i^2 = 3i^2+5i+2

c) 2i + 6i^2

d) 6i-10i^2

e) 8-4i+12i-6i^2= 6i^2+8i+8

f) 15-10i+3i-2i^2 = 2i^2-7i+15