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.
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #1633 by khwang(438)![]() ![]() ![]() You can put this solution on YOUR website! 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 \n" ); document.write( "\n" ); document.write( " Kenny \n" ); document.write( " |