Let L1 be the line through the points ( 1 , 2 , 6 ) and ( 2 , 4 , 8 ). And let L2 be the line of intersection of the planes π1 and π2 , where π1 is the plane ( x − y + 2z + 1 = 0 ) and π2 is the plane through the points ( 3 , 2 , −1 ) ( 0 , 0 , 1 ) and ( 1 , 2 , 1 ). Calculate the distance between and L1 and L2 .

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Coordinate Geometry

Coordinate geometry, also known as analytic geometry or Cartesian geometry in classical mathematics, is a type of geometry that is studied using a coordinate system. Coordinate geometry is a branch of mathematics that describes the position of points on a plane using an ordered pair of numbers called coordinates.