Line integral-how to do this question?

1. Dec 14, 2007

damndamnboi

http://img243.imageshack.us/my.php?image=80830952sk3.jpg

i did part 1 but the integral was very complicated after i subed in y=x^1/2. Can anyone help in evalutaing the first part. thankyou.

2. Dec 15, 2007