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attempt:

C1: x=t y=t ds=root(1)dt, integrated t+2t from 0 to 1 to get 3/2

C2: x=-t ds=root(1)dt, integrated -t from -1 to 0 to get 1/2

C3: y=-t, ds=root(1)dt integrated -2t from -1 to 0 to get 1.

added up 3/2, 1/2, and 1 to get the wrong answer.

the correct answer is (1/2)(3root2 + 7)

looks like im parametizing completely wrong. so how do i go about this? thanks.