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Last updated at Aug. 24, 2021 by Teachoo

Transcript

Example 11 Consider two points P and Q with position vectors (ππ) β = 3π β β 2π β and (ππ) β = π β + π β . Find the position vector of a point R which divides the line joining P and Q in the ratio 2 : 1, (i) internally, and Given (ππ) β = 3π β β 2π β (ππ) β = π β + π β Position vector of R = (π(πΆπΈ) β + π(πΆπ·) β)/(π + π) (ππ ) β = (2(π β + π β ) + 1(3π β β 2π β ))/(2 + 1) = (2π β + 2π β + 3π β β 2π β)/3 = (ππ β)/π Thus, position vector of R dividing P and Q internally is (5π β)/3.

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Example 26 (Supplementary NCERT) Deleted for CBSE Board 2022 Exams

Example 27 (Supplementary NCERT) Deleted for CBSE Board 2022 Exams

Example 28 (Supplementary NCERT) Important Deleted for CBSE Board 2022 Exams

Example 29 (Supplementary NCERT) Important Deleted for CBSE Board 2022 Exams

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Example 31 (Supplementary NCERT) Important Deleted for CBSE Board 2022 Exams

About the Author

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.