73.5.




THIS SECTION IS UNDER CONSTRUCTION


|x1| |x2| |x1 + x2| |y1| + |y2| = |y1 + y2| |z1| |z2| |z1 + z2| |x1| |x2| |x1 - x2| |y1| - |y2| = |y1 - y2| |z1| |z2| |z1 - z2| |x1| |x2| |y1| * |y2| = x1*x2 + y1*y2 + z1*z2 |z1| |z2| |x1| |x2| | y1*z2 - z1*y2 | CORRECT IT |y1| X |y2| = | z1*x2 - z1*z2 | |z1| |z2| | x1*y2 - y1*z2 |


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