(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find an equation of the line through the point A (4,5,5) which meets the line (x-11)/3 = (y+8)/-1 = z-4 at right angles.

2. Relevant equations

3. The attempt at a solution

well i know that the direction of the given line is d(3,-1,1) and the original line crosses through the point (11,-8,4)

The direction of the new line must be able to dot with the old line to get 0 (thus right angles).

I dont know how to find a direction that i know will pass through A.

Help or hint please

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# Equation of 3d vector question

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