Question

Qual o conjugado do n° Z=4
-
1-i

Answer 1

4:1-i 4.........(1+i) ----- x -------- (1-i).....(1+i) 4+4i ------- 1 - i² 4+4i -------- 1-(-1) 4+4i ------ 2 2(2+2i) ---------- 2 z=2+2i o conjugado: 2-2i

Answer 2

.
$Z= \frac{4}{1-i} \\ \\ Z= \frac{4(1+i)}{(1-i)(1+i)}$

$Z= \frac{4(1+i)}{1^2-i^2}$

$Z= \frac{4(1+i)}{1-(-1)} \\ \\ Z= \frac{4(1+i)}{2} \\ \\ Z= 2(1+i) \\ \\ Z=2+2i$