Example 9 - Write direction ratio's of a = i + j - 2k - Examples

  1. Chapter 10 Class 12 Vector Algebra
  2. Serial order wise
Ask Download

Transcript

Example 9 Write the direction ratio s of the vector = + 2 and hence calculate its direction cosines. = + 2 = 1 + 1 2 Directions ratios are = 1 , b = 1 , c = 2 Magnitude of = (1^2+1^2+( 2)^2 ) | | = (1+1+4) = 6 The directions cosines of are ( /| | , /| | , /| | ) = ( / , / ,( )/ )

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.