Question 21928
 Find the equation of the plane that passes through the point (1,1,1) and is normal to the vector N=(1,2,3).


 The equation of a plane passing through (xo,yo,zo) with normal vector
 N = (a,b,c) is {by the dot product [(x,y,z) - (xo,yo,zo)] . N = 0 }

 a(x-xo) + b(y-yo)+ c(z-zo) = 0.

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 Kenny