Can someone please help. The question is: Determine whether the following subsets of R^4 are subspaces. (i) U={(x1,x2,x3,x4)T[x1+x3=0} (ii) V= {x1,x2,x3,x4)T[x2+x4=1} Thanks in advance.
Follow Math Help Forum on Facebook and Google+
HINT: Can V contain (0,0,0,0)?
View Tag Cloud