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Math Help - Find the flux of the field F across the curve c

  1. #1
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    Find the flux of the field F across the curve c

    F=yi+xj, c is the circle (x-5)^{2} +(y+1)^{2}=9

    I guess the problem I'm having is parameterizing the function of the circle. Any help would be appreciated. Thanks

    EDIT: Maybe parameterizing isn't the correct term. I'm looking to make the equation of the circle look something like r(t)=cos(t)i +sin(t)j or something. From this point, I'm pretty sure I can work the rest of the problem.
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  2. #2
    MHF Contributor FernandoRevilla's Avatar
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    Quote Originally Posted by downthesun01 View Post
    EDIT: Maybe parameterizing isn't the correct term. I'm looking to make the equation of the circle look something like r(t)=cos(t)i +sin(t)j or something. From this point, I'm pretty sure I can work the rest of the problem.
    It is:

    r(t)=(5+3\cos t)i +(-1+3\sin t)j\quad (t\in [0,2\pi])

    Regards.

    Fernando Revilla
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    Thanks much. Let me see if I can work the rest of the problem now.
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