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Direction Cosines and Direction Ratios | 3D Geometry | Vector Analysis | Class 12 Maths
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This is extremely important basic concept of three Dimensional Coordinate Geometry and Vector Algebra.
The angles made by a straight line of a vector with the axes are called Direction Angles of the straight line or the vector.
The cosines of Direction Angles of a straight line or a vector are called its Direction Cosines which are generally denoted by l, m, n respectively.
Any three numbers proportional to Direction Cosines of a straight line or a vector are called the Direction Ratios which are generally denoted by a, b, c respectively.
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The angles made by a straight line of a vector with the axes are called Direction Angles of the straight line or the vector.
The cosines of Direction Angles of a straight line or a vector are called its Direction Cosines which are generally denoted by l, m, n respectively.
Any three numbers proportional to Direction Cosines of a straight line or a vector are called the Direction Ratios which are generally denoted by a, b, c respectively.
My YouTube Channel :
My Blogs :
#math #maths #mathematics #mathsolveszone
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