Решите уравнение z(Im z - 4)=10-4i
Z = x + yi (x + yi)(y - 4) = 10 - 4i xy - 4x + y^2i - 4yi = 10 - 4i xy - 4x + i(y^2 - 4y) = 10 - 4i Система xy - 4x = 10 y^2 - 4y + 4 = 0 xy - 4x = 10 (y - 2)^2 = 0 x = - 5 y = 2 z = - 5 + 2i