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Direction ratios and Direction cosines (in Hindi)
Lesson 4 of 15 • 24 upvotes • 13:21mins
Jagat Singh
Learn how to find direction ratios and direction cosines for a vector. How to convert a given vector to unit vector to find its direction cosines. Geometrical meaning of direction cosines and pyq on vector algebra Now that we have understood what direction cosines are, we can move to direction ratios. Any numbers that are proportional to the direction cosines are calleddirection ratios, usually represented as a, b, c. So we can write, a = kl, b = km, c = kn where k is a constant.
(Hindi) Vector Algebra for IIT JEE
15 lessons • 3h 22m
1
Course overview (in Hindi)
4:14mins
2
Vector and its formation (in Hindi)
13:16mins
3
Magnitude of a vector and unit vector (in Hindi)
15:00mins
4
Direction ratios and Direction cosines (in Hindi)
13:21mins
5
Section formula , Polygon law (in Hindi)
15:00mins
6
Algebra of vectors (in Hindi)
14:11mins
7
Dot product and its expressions (in Hindi)
14:16mins
8
Properties of Dot product (in Hindi)
14:55mins
9
Dot product properties p2 (in Hindi)
12:54mins
10
Linear combination of vectors(in Hindi)
14:55mins
11
Cross product of two vectors (in Hindi)
14:36mins
12
Cross product properties and applications (in Hindi)
14:12mins
13
Problems on product of vectors (in Hindi)
15:00mins
14
Questions on vector triple product (in Hindi)
14:03mins
15
Scaler triple product (in Hindi)
12:24mins
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