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Question: Normal vector of a plane

Question:Normal vector of a plane

toandhsp 300 Maple
geom3d
February 15 2012
0

I want to put vector n = (a, b, c) as normal vector of plane with assume a^2 + b^2 + c^2 > 0. For example

with(geom3d):assume(a^2 + b^2 + c^2>0):

plane(P,a*(x-1) + b*(y+2) + c*(z-3)=0,[x,y,z]);

But, i got: "Error, (in geom3d:-plane) unable to define the plane"
Plese help me. How can i put vector n = (a, b, c) as normal vector of plane?
Thank you very much.
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