# Homework Help: Countour integral of z from 0 to 1+2i

1. Dec 10, 2012

### doey

1. The problem statement, all variables and given/known data

evaluate contour integral Z dz from 0 to 1+21 in the curve of y=2x

2. Dec 10, 2012

### Dick

So what exactly is your problem here? I can think of two ways to do this. Parametrize the curve or use the complex antiderivative. Both are easy. Do something!

Last edited: Dec 11, 2012
3. Dec 11, 2012

### doey

ok,i try to solve for integrate z dz= x+iy(dx+idy) and get dy dx from y=2x.and i get the answer for integrate z dz,
how about the answer for integrate complex conjugate of z? since complex conjugate of z is not analytical .can i do it in the same way oso?

Last edited: Dec 11, 2012
4. Dec 11, 2012

### Dick

Yes, you can do it in the same way.