document.write( "Question 3683: Let u, v, and w be distinct vectors of a vector space V. Show that if
\n" ); document.write( "{u, v, w} is a basis for V, then {u + v + w, v + w, w} is also a basis
\n" ); document.write( "for V.
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Algebra.Com's Answer #1633 by khwang(438)\"\" \"About 
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if a(u + v + w)+ b(v + w) + c w = 0 for scalars a,b,c
\n" ); document.write( " then a u + (a+b)v + (a+b+c)w = 0
\n" ); document.write( " since u,v,w are independent
\n" ); document.write( " we have a = 0, a+b = 0 and a+b+c = 0\r
\n" ); document.write( "\n" ); document.write( " This implies b = 0 and so c = 0.
\n" ); document.write( " This shows u + v + w, v + w, w are three independent
\n" ); document.write( " and so {u + v + w, v + w, w} forms a basis for V,
\n" ); document.write( " because {u,v,w} is a basis of V, dim V = 3.\r
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