Relation between the direction cosines of a line, Direction cosines of a line passing through two points
- 3D Geometry Straight Line Part 01 (Direction ratio, Direction Cosines)
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- 3 Dimensional Geometry part 4 (Example:- Direction cosine, ratio)
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- 3 Dimensional Geometry part 3 (Example:- Direction cosine, ratio)
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- 3 Dimensional Geometry part 2 (Direction Cosine, Ratios)
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- Three Dimensional Geometry Part 1- Direction Ratios
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Find the vector equation of the plane passing through (1, 2, 3) and perpendicular to the plane `vecr.(hati + 2hatj -5hatk) + 9 = 0`
Find the Direction Cosines of the Sides of the Triangle Whose Vertices Are (3, 5, -4), (-1, 1, 2) and (-5, -5, -2)
If a line makes angles 90°, 135°, 45° with x, y and z-axes respectively, find its direction cosines.
If l1, m1, n1 and l2, m2, n2 are the direction cosines of two mutually perpendicular lines, show that the direction cosines of the line perpendicular to both of these are m1n2 − m2n1, n1l2 − n2l1, l1m2 − l2m1.