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Math Help - Two questions involving surface area.

  1. #16
    MHF Contributor
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    There was a typo in an earlier post. It should read

    \vec{r} = < 2 \sin 2 u, \; 2 + 2 \cos 2u,\; 4 \,v \, \sin u>

    and

    <br />
||\, \vec{r}_u \, \times\, \vec{r}_v \, || = 16 \sin u

    Here's a pictue of the surface in question
    Attached Thumbnails Attached Thumbnails Two questions involving surface area.-pic.jpg  
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