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Anunoy Choudhary from DAV PUBLIC SCHOOL, asked a question
Subject: Math , asked on 26/9/10

 What is difference between collinear & coplanar vectors ? 

If  vector AO + OB = vector BO + OC , then A , B , C are coplanar or collinear ?

Vivek Gautam From Kendriya Vidyalaya, added an answer, on 26/9/10
10 helpful votes in Math

 they are maybe collinear but they are guaranteed coplanar unless you are not studying them in 3D geometry 

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Vivek Gautam From Kendriya Vidyalaya, added an answer, on 26/9/10
10 helpful votes in Math

 collinear vectors means that they have lie on any line which are common in them 

but coplanar means they lie in a plane such as x-y plane our cartesian coordinate system like that 

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Siddheshpathak , added an answer, on 28/7/12

is this question based on maharastra textbooks

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Adesh Srivastava From M .l.convet School, added an answer, on 9/11/10
1 helpful votes in Math

They are collinear if AO =AC else they are coplanar

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Stan Lance , added an answer, on 28/2/12

Since vector AO+OB=BA

and vector BO+OC=CB

both the vectors have a common point B therefore they are collinear

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