Question

the tunction f(z)= (z)^{2}/z,z≠0 0,z=0 suntistes -Rieman equations at z=0 Does f (0) exist?`

Answer 1

$f(z)= \dfrac{z²}z,z≠0\\\text{for }z=0\\ f(0) = \dfrac{0²}{0} = 0\\ f(0) = 0.$

$\therefore$ the function exists.