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Statement 1: Distance of point D( 1,0,-1...

Statement 1: Distance of point D( 1,0,-1) from the plane of points A( 1,-2,0) , B ( 3, 1,2) and C( -1,1,-1) is `8/sqrt229`
Statement 2: volume of tetrahedron formed by the points A,B, C and D is `sqrt229/ 2`

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