QUESTION 6 Which of the following expressions correctly sets up the line integral r(t)=(t²+2t)i + (t²-2t)j for Ost≤2? O a. S²12 12t² dt O b. (4t³ +8t) dit OC. ²4t√/21*+8t² dt O d.. 5²² 4t√ 8t² +8 dt O e. Some other answer. SF. F. dr. where F(x,y)=(x,-y) and cis parametrized by the curve

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