NDLI: Direction Cosines And Direction Ratios Of A Line in 3D Plane

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Direction Cosines And Direction Ratios Of A Line in 3D Plane

Direction Cosines And Direction Ratios Of A Line in 3D Plane

Content Provider	YouTube Learning
Description	In this video, what is direction cosines and direction ratios of a 3D line, are discussed. In simple terms, these systems are nothing but a way to represent the direction of a 3D vector. Understand the direction cosines of a line and its direction ratios with suitable examples given in this video. Direction Cosines of a line/ vector in 3D Space:Direction cosines or directional cosines of a vector are the cosines of the angles between that vector and the three coordinate axes. The direction cosines of a line are generally denoted by l, m, and n. It should be noted that the sum of squares of the direction cosines of a line is equal to unity. Direction Ratios of a line/ vector in 3D Space:Direction ratios of a vector or line can be defined as any numbers that are proportional to the direction cosines. Generally, directional ratios are denoted by a, b, and c.
Language	English
Publisher Date	2018-09-28
Access Restriction	Open
Subject Keyword	what is direction cosine three dimensional geometry class 12 cbse direction cosines direction ratios and direction cosines vector projection direction cosines of a vector direction ratios direction cosines of a line three dimensional geometry vector algebra class 12 direction cosines of a vector example direction cosines of a line in 3d three dimensional geometry class 11 angle between two lines 3 dimensional geometry
Content Type	Video
Educational Role	Student Teacher
Educational Use	Self Learning Classroom
Time Required	PT3M33S
Education Level	Class XI Class XII
Resource Type	Video Lecture
Subject	Slope of a Line in 2D, Direction Cosines and Direction Ratios

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