Question

Выполните действия -i+1/-3i-1 - i+1/2-i •(i-4)

Answer 1

Ответ:

((1-3i) ^2 - (1+3i) ^2) / ((1+3i) (1-3i)) = (1-6i+9i^2-1-9i^2-6i) / (1-9i^2) =

=-12i / (1+9) = - 1,2i