# Math Help - calc 3- line integrals over a path

1. ## calc 3- line integrals over a path

evaluate the line integral over the indicated path.
the integral of (x+y+z)dL
where C is the line segment joining the origin to the point (-8,2,1/3)

i am new to this and really unsure of my answers..so i easily get freaked out by weird answers. i got:
(-17*sqrt(613))/(27)

anyone want to double check my work for me please? i'll feel more confident with all of my answers. this problem only took me a few steps so it should be quick

2. Originally Posted by holly123

evaluate the line integral over the indicated path.
the integral of (x+y+z)dL
where C is the line segment joining the origin to the point (-8,2,1/3)

i am new to this and really unsure of my answers..so i easily get freaked out by weird answers. i got:
(-17*sqrt(613))/(27)

anyone want to double check my work for me please? i'll feel more confident with all of my answers. this problem only took me a few steps so it should be quick
Let r(t) = <-8t, 2t, t/3>. Compute the integral of sqrt(68 + 1/9)*(-8t + 2t + t/3)dt from t = 0 to t = 1.