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Homework Help: Line integral, Error in my textbook?.

  1. Dec 5, 2011 #1
    1. The problem statement, all variables and given/known data

    Evaluate the line integral:

    int(ydx+xdy) where the path C is y=sinx from (0,0) to (pi/2,0)

    2. Relevant equations

    3. The attempt at a solution

    (pi/2,0) is not a solution to y=sinx. I could use the fundamental theorem but for my potential function I get F(x,y)=xy which would give me zero with those endpoints...answer in the book gives pi/2. Is this an error? Thanks
  2. jcsd
  3. Dec 5, 2011 #2


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    Science Advisor
    Homework Helper

    No, I don't think the answer pi/2 is an error. But I think the problem statement is an error. I think meant to say x from 0 to pi/2. Which makes the endpoints (0,0) and (pi/2,1).
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