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    				| 1. | 
                                    If d is the distance from the origin and L, m,n are. The direction cosines of the normal to the plane through the origin,then find the foot of the perpendicular of plane ? | 
                            
| Answer» If d is the distance from the origin and L, m,n are. The direction cosines of the normal to the plane through the origin,then find the foot of the perpendicular of plane ? | |