Preliminary Equations of Planes in 1123
general eqnof a plane ax by cz d
y x is aneqnof a plane in IR because itcanbewritten as 1 14 oz 0
thenormalvectorofthisplanewouldbe ñ 1.1.0
Ex in123doplanes x oand4 0andx y intersect theyintersect in a line the z axis
Ex in123doplanes x oand4 0 and 2 0 intersect theyintersectat apoint theorigin
1 Y Y I d
i pivot
III
positions
IE
4 variables
solutionset I
3s
1
EMEITY
GausJordan Elimination
EEIII.IE
iII
E E E I
1