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

Transcript

Example 6 Find unit vector in the direction of vector ๐‘Ž โƒ— = 2๐‘– ฬ‚ + 3๐‘— ฬ‚ + ๐‘˜ ฬ‚ Given ๐‘Ž โƒ— = 2๐‘– ฬ‚ + 3๐‘— ฬ‚ + ๐‘˜ ฬ‚ Magnitude of ๐’‚ โƒ— = โˆš(22+32+12) |๐’‚ โƒ— | = โˆš(4+9+1) = โˆš๐Ÿ๐Ÿ’ Unit vector in direction of ๐‘Ž โƒ— = ๐Ÿ/(๐‘ด๐’‚๐’ˆ๐’๐’Š๐’•๐’–๐’…๐’† ๐’๐’‡๐’‚ โƒ— ) ร— ๐’‚ โƒ— ๐’‚ ฬ‚ = 1/โˆš14 ["2" ๐‘– ฬ‚" + 3" ๐‘— ฬ‚" + 1" ๐‘˜ ฬ‚ ] ๐‘Ž ฬ‚ = 2/โˆš14 ๐‘– ฬ‚ + 3/โˆš14 ๐‘– ฬ‚ + 1/โˆš14 ๐‘˜ ฬ‚

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.