## anonymous 3 years ago line integral over the vector field

1. anonymous

$F= \frac{ <x,y> }{ (x^2+y^2)^{3/2} }$ on the line segment from (2,2) to (10,10)

2. anonymous

i found r(t)= <2+8t, 2+8t> so then i have trouble calculating F

3. anonymous

i got the answer 2/5 is it right?

4. anonymous

Does the question mean $F=(\frac{x}{(x^2+y^2)^{1.5}},\frac{y}{(x^2+y^2)^{1.5}})$?