hello all,..

i need help with this problem

If is a holomorphic function on the strip with , where is a fixed real number, for all z in that strip.

show that for each integer there exist s.t

for all .

my uncomplete solution :

fixed n. for any , we can make a circle centered at with radius .

by cauchy inequalities, we have

with .

let

because , then

what should I do next?

thx for any comment