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so far i was able to write the parametric form x = t y=3t and z=-2t

the square root of all the derivatives is root(14).

so i get root(14) times integral of (t + t^2 -2t)dt.

my answer is (11/3) times root(14)

but the answer key says (11/2) times root(14)

my problem is that i don't know how to set the bounds of the integral.. i just integrate from 0 to 1, but really I am just guessing. how do i go about this?