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March 25, 2017

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find three points on each plane [x,y,z]= [3,4,-1]+s[1,1,-4]+ t[2,-5,3]

  • vectors - ,

    pick any value of s and t you feel like, I will do one

    let s = 2, t = 1

    (x,y,z) = (3,4,-1) + (2,2,-8) + (2,-5,3) = (7, 1, -6)

  • vectors - ,

    why are the answers in the back of my textbook,[3,4,-1], [4,5,-5], [2,3,3]

  • vectors - ,

    It said, find three points, that is
    any three point from the infinite number of points that would be possible

    to get my point, as I said, I let s=2 and t=1

    to get their point of (3,4,-1), they used s=0 and t=0
    to get their point of (4,5,-5) they used s=1 and t=0

    You can use any value of s and t that you want, it was rather silly to even give any answer at all in the back of the book.
    It only confuses the student if he/she does not get that particular answer.

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