Problem ( 4 ) Let f ( 2) be an analytic function in a circular region amp; wherein lie the points amp; , and 22 . It is known that for all amp; in...

help please complex analysis problem

help please complex analysis problem

help please complex analysis problem

help please complex analysis problem

Problem ( 4 ) Let f ( 2) be an analytic function in a circular region & wherein lie the points & , and22 . It is known that for all & in 12 , If ' ( 2 ) | < M. Show that If ( 2 1 ) - f ( 2 2 ) | < M| | 2 1 - 221.