TeX Quellcode:

{\dfrac{z_1}{z_2}=\dfrac{3+5i}{-2+8i}=\dfrac{(3+5i)(-2-8i)}{(-2+8i)(-2-8i)}=\dfrac{-6-24i-10i+40}{4-64i^2}=\dfrac{34-34i}{4+64}=\dfrac{34}{68}-\dfrac{34i}{68}=\dfrac{1}{2}-\dfrac{1}{2}i}