Question: [3 marks] Show that the normal line to the surface m2+mz+2yzz210x+28=0 at the point P with coordinates (2, 1, 2) passes through the origin of
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[3 marks] Show that the normal line to the surface m2+mz+2yzz210x+28=0 at the point P with coordinates (2, 1, 2) passes through the origin of the co ordinates
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