Vector algebra of tetrahedron

junam

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Dec 31, 2013
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The vertex length of a tetrahedral geometry from the centre is 'a'. By constructing vecotrs show that resultant of any three vectors is equal and opposite to the fourth vector.
 
The vertex length of a tetrahedral geometry from the centre is 'a'. By constructing vecotrs show that resultant of any three vectors is equal and opposite to the fourth vector.
What have you tried? How far have you gotten? Where are you stuck?

Please be complete. Thank you! ;)
 
I am working it out, pls wait, I ll just try and if I dont get , I ll come.
 
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