Question

Sabendo que Z = 3 – 2i, determine o valor de Z. = :

(A) 5
(B) 7
(c) 11
(D) 13

Answer 1

z*z'=(3-2i).(3+2i)
z*z' = 9+6i-6i-4i^2
z*z' = 9+4= 13