1

**MAT334--Lectures & Home Assignments / 2.5Q14**

« **on:**November 05, 2018, 09:16:40 PM »

I have no idea about the proof. Can anyone help me with this question？

Q: If f is analytic in $|z-z_0|<R$ and has a zero of order m at $z_0$, show that $Res(\frac{f’}{f};z_0)=m$

Q: If f is analytic in $|z-z_0|<R$ and has a zero of order m at $z_0$, show that $Res(\frac{f’}{f};z_0)=m$