[" a: "b:c=a:a:sqrt(2)a=1:1:sqrt(2)],[" Fexample "37" ) "A" plane which passes through the point "(3,2,0)" and "],[" the line "(x-3)/(1)=(y-6)/(5)=(z-4)/(4)" ,is "],[[" (a) "x-y+z=1," (b) "x+y+z=5],[" (c) "x+2y-z=1," (d) "2x-y+z=5]]