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Joined: 11 Oct 2011
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14 Oct 2011 16:14:11 IST
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length of medians of traingle whose sides are a=3i+j-2k,b= -i+3j+4k,c=4i-2j-6k
Mathematics

if the vectors A= 3i+j-2k,B= -i+3j+4k,C=4i-2j-6k can form the sides of a traingle find the lengths of medians of traingle


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New kid on the Block

Joined: 23 Nov 2010
Posts: 22
14 Oct 2011 16:28:29 IST
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If u consider ur given vctrs to be the p.v. of pts A,B,C then its pretty easy...bt if u consider the sides 2 b da vctrs itslf then its a matter 2 b thought upon...wait a minute lt me think ovr it a bit....

New kid on the Block

Joined: 11 Oct 2011
Posts: 9
15 Oct 2011 02:18:48 IST
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i have solved the question by taking these as position vectors but the abs did nt match... so these vectors must represent the sides


New kid on the Block

Joined: 11 Oct 2011
Posts: 9
15 Oct 2011 02:22:05 IST
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if u dont mind can u just tell me ur ans when u solve it taking them as the position vectors

 




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