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Transformation T as a projection on a Line

  1. Mar 16, 2016 #1
    1. The problem statement, all variables and given/known data
    T: R^2 --> R^2 given as a projection on the line L = 5x+2y=0
    decide matris T?

    2. Relevant equations

    3. The attempt at a solution
    L= 5,2
    X=x1, x2
    projL on X = (5x1+2x2)/29 *(5,2)

    = 1/29 [25 10
    10 4]
    is this correct?
  2. jcsd
  3. Mar 16, 2016 #2


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    Gold Member

    Try finding a unit vector along the line L to start.
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