Question

Sejam z¹=2+3i e z²= 1-4i, e calcule:

a) z¹+z²=
b) z¹-z²=
c) z¹.z²=

Answer 1

a)

(2+3i) + (1-4i)
(3 - i)

b)

(2+3i) - (1-4i)
(1 + 7i)

c)

(2+3i)*(1-4i)
(2 -8i +3i -12i²)
(-12i² -5i +2)

Answer 2

Resposta

Sejam z¹=2+3i e z²= 1-4i, e calcule:

a) z¹+z²=

b) z¹-z²=

c) z¹.z²=