Evaluate the following integrals:
a). integral over gamma of e^(iz) / z^2 dz, where gamma(t) = e^(it), 0=<t=<2 pi
( e here is exponential function).
Please use basic definitions and power series representation of analytic functions to do so.
b). integral over gamma of sin(z)/z^3 dz ( same gamma and values of t as above)
This shows how to evaluate to integrals over gamma (power series representations)