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Elementary linear algebra questions

  1. Apr 26, 2005 #1
    Could someone help me please?

    1.) Find the scalar equation of the line containing P(2, -1, 3) and perpendicular to the lines [x y z]^T=[4 -1 2]^T + t[7 0 1] and [x y z]^T=[-2 0 1] + t[2 3 0]^T.

    2.)Find all points C on the line through A(1, -1, 2) and B(2, 0, 1) such that vectors llACll= 2 llBCll.
  2. jcsd
  3. Apr 26, 2005 #2


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    as they say here: what have you tried?
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