1. Prove that there is no analytic function insidesuch as every z in this region satysfies:Code:`z:0<|z|<1`

.Code:`f^2(z)=z`

2. Let f be analytic at the annulus:.Code:`D=z:0<|z-a|<r`

Prove that if f has an antideriative function then Res(f,a)=0 .

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