Recent content by B.Cantarelli

Thank you very much for the response. The trouble I was having was exactly with the "Knowing the distance, you can quickly find the point on the plane that is that distance away from the point (1, 1, 1)" part. Particularly with the "quickly". I got the ray 1/sqrt(14) by doing exactly what you...

Question: Find the point in the plane x+2y-3z=1 with minimum distance to point (1,1,1). Attempt at resolution: Well, techinically, I already have the means to solve this. I can find the distance between the point and the plane to be 1/sqrt(14) and then I can either solve for the sphere...

Oh, of course. Thank you very much Dick.

Question: What are the vector, parametric and symmetric equations of the angle bissector of angle ∠ABC, given that A=(1,2,3), B=(3,4,5) and C=(6,7,0). Attempt at resolution: Well, I defined some D=(d_1,d_2,d_3) to be a point in the angle bissector, and two lines r:X=(3+2a,4+2a,5+2a) and...