3D Geometry 01 : Direction COSINES, Direction Ratios, Equation of Line | Class 12 NCERT

NCERT Wallah - SANKALP 2021

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🛑Direction cosines of a vector are the cosines of the angles between the vector and the three positive coordinate axes.
Numbers that are proportional to the direction cosines of the line are called Direction ratios of the line.

Topics included in the lecture are:
•Direction cosines
•Direction ratios
•Equation of a line
-Vector form
-Cartesian form
and some question's for practice.

There are many other important topics that we are going to cover in upcoming videos for class 12. Stay tuned with NCERT Wallah.

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