TeX Quellcode:

{ \dfrac{i-10}{-1-i} \; = \; \dfrac{(-10+i)(-1+i)}{(-1-i)(-1+i)} \; = \; \dfrac{10-10i-i+i^2}{(-1)^2-i^2} \; = \; \dfrac{9-11i}{2} \; = \; \dfrac{9}{2} - \dfrac{11} {2} i }