- #1
thomas49th
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Homework Statement
x1 = (0,0,4) + s(2,0,-1)
x2 = (-4,2,2) + t(-5,1,1)
Homework Equations
The Attempt at a Solution
First of all I find the common perpendicular (vector cross product)
Make it unit
Find a arbitrary line joining the two 2 lines (set s = t= 0)
Then scalar produce the unit normal and the line between the vectors to get the minimum distance. I get 2/sqrt(14), while the answers say just sqrt(14). How so?
Also I am just doing the method, but what does it mean geometrically. Why find a line perpendicular, or use a unit vector?
Thanks
Thomas