HSC Arts 12th Board ExamMaharashtra State Board
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If a, b, c are the position vectors of the points A, B, C respectively and 2a+3b−5c=0, then find the ratio in which the point C divides line segment AB. - HSC Arts 12th Board Exam - Mathematics and Statistics

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Question

If bara, barb, bar c are the position vectors of the points A, B, C respectively and  2bara + 3barb - 5barc = 0 , then find the ratio in which the point C divides line segment  AB.

Solution

2bara + 3barb - 5barc = 0

5 barc=3barb+2bara

barc=(3barb+2bara)/5

barc=(3barb+2bara)/(3+2)

∴C divides seg AB internally in the ratio 3 : 2

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APPEARS IN

2013-2014 (March) (with solutions)
Question 1.2.1 | 2.00 marks
Solution If a, b, c are the position vectors of the points A, B, C respectively and 2a+3b−5c=0, then find the ratio in which the point C divides line segment AB. Concept: Basic Concepts of Vector Algebra.
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