Question

Apply Cauchy-Riemann to: f(z)=ln|z| +i Arg(z) What can you conclude? I'm not really even sure to...

Apply Cauchy-Riemann to: f(z)=ln|z| +i Arg(z) What can you conclude?

I'm not really even sure to start with this one and I'm just really confused. Any help would be appreciated, thank you!

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