
#1
Sep1106, 05:57 PM

P: 6

can anyone help me with this question:
A sphere of unit radius is centered at the origin. points U,V & W on the surface of the sphere have vectors u,v & w. find the position vector of points P&Q on a diameter perp to the plane containing points U,V & W? can anyone help 



#2
Sep1106, 09:33 PM

Admin
P: 21,628

In Cartesian coordinates if the points U, V, W are coplanar, to which position vectors u, v, w point, respectively, what can one do to create two planar vectors? Hint. What is the formula for the vector pointing from U to V? Similarly for V to W or U to W.
Now with two coplanar vectors, how does one find a vector perpendicular to those two? 



#3
Sep1206, 01:50 PM

P: 6

tripple scaler product?



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