Example, 5 - Chapter 11 Class 12 Three Dimensional Geometry
Last updated at Dec. 24, 2019 by Teachoo
Transcript
Example, 5 Show that the points A (2, 3, 4), B (1, 2, 3) and C (3, 8, 11) are collinear. Three points A, B, C are collinear if direction ratios of AB and BC are proportional. Now, 2 1 = 2 1 = 2 2 1 = 10 5 = 2 2 1 = 14 7 = 2 Since, = = = 2 Therefore, A, B and C are collinear.
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Chapter 11 Class 12 Three Dimensional Geometry
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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.