MHB Analytic Function II: Complex Calculation

[asqw121]

Let p(z)=A(z-z1)...(z-zn) where A and z1...zn are complex numbers and A not equal to 0 . Show that
P'(z)/P(z)=∑ (1/(z-zj)) z not equal z z1...zn

 

[Nono713]

Re: Analytic function

What have you tried? This isn't the place to dump homework and collect answers :(

 

[asqw121]

Re: Analytic function III

Already try hard but I really stuck on this question
Please help

 

[MarkFL]

Re: Analytic function III

Already try hard but I really stuck on this question
Please help

If you show what you have tried, then our helpers can help, otherwise they are left to do the problem for you, which is of little help to you as far as you being able to work this problem and others like it yourself.