Question

If C is a straight line from z = 2 to z = 2+(pi/2)i
\[(\int\limits_{C}^{}dz/(e^{z}+1) ) \le ((\pi/2)*1/(\sqrt{e^{4}+1}))\]

Answer 1

show that

Answer 2

lol ... how to parametrize line in complex field??

Answer 3

i have no idea i am working on it for hours but still i do not have any opinion