THREE DIMENSIONAL GEOMETRY
Chapter 11: THREE DIMENSIONAL GEOMETRY · MATHEMATICS PART-2 · EN medium
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® Direction ratios of a line are the numbers which are proportional to the direction cosines of a line. ® If l , m , n are the direction cosines and a , b , c are the direction ratios of a line then l = ; m = ; n = ® Skew lines are lines in space which are neither parallel nor intersecting. They lie in different planes.
📖 ncert book class 12 maths part 2 chapter 5 · Page 15
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® Direction ratios of a line are the numbers which are proportional to the direction cosines of a line. ® If l , m , n are the direction cosines and a , b , c are the direction ratios of a line then l = ; m = ; n = ® Skew lines are lines in space which are neither parallel nor intersecting. They lie in different planes.
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