I'm looking at integrals about the unit circle and need to show that they equal 0.
My thoughts on showing these is using series. Is this the right idea?
Also I'm looking at a couple of integrals and will be evaluating along any curve joining the end points of integration.
integral(cosh3zdz) from -1 to i series expansion?
integral(z^3-iz)dz from -R to R This just confuses me with the R's. Is this just a normal integral, but converting z to x+iy?