# Homework Help: Line integral and parametrization

1. Oct 5, 2005

### Tony11235

I know this is dumb question but for some reason I have not been able to get the right answer to the following problem:

$$\int_{c} 2xyzdx+x^2 zdy+x^2 ydz$$

where C is a curve connecting (1, 1, 1) to (1, 2, 4).

My parametrization is (1, 1+t, 1+3t). My limits are the problem...I think. By the way the correct in answer in the book is 7.

2. Oct 5, 2005

### amcavoy

Your parametrization is fine. You said your limits are the problem, but which are you using? Which value t would give your first point? The second?

Alex

3. Oct 5, 2005

### Tony11235

OMG....I am retarted.