1. Show that the three lines with direction cosines 12/3

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1. Show that the three lines with direction cosines 12/3, -3/13, -4/13, 4/13, 12/13, 3/13, 3/13, -4/13, 12/13 are mutually perpendicular.
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1. Show that the three lines with direction cosines 12/3, -3/13, -4/13, 4/13, 12/13, 3/13, 3/13, -4/13, 12/13 are mutually perpendicular. -3/13 -4/13 1. Show that the three lines with direction cosines 12/3 12/13 12/13 are mutually perpendicular. 3/13​ November 15, 2021 Category: Chapter 11 - 3D Geometry , Maths , NCERT Exemplar Class 12 [...]
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Tags: -3/13 , -4/13 , 1. Show that the three lines with direction cosines 12/3 , 12/13 , 12/13 are mutually perpendicular. , 3/13​ ,