Question

calcule o quociente -2-10i/-1+i

Answer 1

Resposta:

$\frac{( - 2 - 10i) \times( - 1 - i }{ ( - 1 + i) \times ( - 1 - i)} \\ \\ \frac{2 + 2i + 10i + 10i {}^{2} }{1 - i {}^{2} } \\ \\ \frac{2 + 2i + 10i - 10}{1 + 1} \\ \\ \frac{ - 8 + 12i}{2} \\ \\ \frac{2( - 4 + 6i)}{2} \\ \\ - 4 + 6i$