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Thread: Solution to intersecting planes

  1. #1
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    Question Solution to intersecting planes

    Regarding the image below, I'm confused where the variable r came from. Can someone please explain?


    Attachment 39497
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  2. #2
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    Re: Solution to intersecting planes

    never mind the $r$

    just solve the system of 3 equations in 4 unknowns and see what you get
    Thanks from topsquark
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