Find the direction cosines of the normal to YZ plane?

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  1. Class 12
  2. Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

Transcript

Question 13 Find the direction cosines of the normal to YZ plane? Normal to YZ plane would be x-axis x – axis makes an angle 0° with x – axis, 90° with y – axis & 90° with z – axis. So, 𝛼 = 0°, 𝛽 = 90°, 𝛾 = 90° l = cos 90°, m = cos 0°, n = cos 90° l = 0, m = 1, n = 0 ∴ Direction cosines of x – axis are 1, 0, 0

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.