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Homework Help: Help needed with direction angles and vector equations

  1. Mar 29, 2012 #1
    1. The problem statement, all variables and given/known data

    A line has direction angles 60°, 45°, 60° and passes through the point
    (1, -2, 5). Determine the vector equation of this line.

    2. Relevant equations

    I honestly have no clue. My teacher gave a hint it has to do with trig (as in the trig ratios) and the unit vector formula, but I don't see how they mix.

    3. The attempt at a solution

    Tried everything except the right way for the last week, resulting in dead ends.
  2. jcsd
  3. Mar 29, 2012 #2
    if no one has a clue, it would help to mention that, proving to my teacher that he should just give me the answer.
  4. Mar 29, 2012 #3
    And I am serious when I say I have been trying for a week to solve it, im not trying to get by easily. posting my questions here is kind of a last resort, for a question that I am really stuck on.
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