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Math Help - Finding equation of plane.

  1. #1
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    Finding equation of plane.

    Im a bit stuck here, any help will be appreciated, thanks..

    Find the equation of the plane containing two parallel lines which are: r=a+(alpha)u and r=b+(beta)u
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  2. #2
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    Quote Originally Posted by rlkmg View Post
    Im a bit stuck here, any help will be appreciated, thanks..
    Find the equation of the plane containing two parallel lines which are: r=a+(alpha)u and r=b+(beta)u
    Assuming that these are indeed two lines then the normal to the planes is \vec{N}=\vec{ab}\times \vec{u}.
    Let \vec{R}=<x,y,z>-\vec{a} so the plane is \vec{N}\cdot\vec{R}=0.
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