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Help : Linear Algebra
Posted:
Jun 14, 1996 12:20 AM


I have two questions I need some help on. I have a pretty good idea on 1), but I am not sure on 2).
1) Suppose A is pxq with rank p and B is pxr, how do I show that [A B] has rank p?
2) Suppose that pxq matrix A has n nonzero rows and pn zero rows. If k is the rank of A, how could I show k <= n ?
I appreciate your help.
 Joong jhlee@whale.st.usm.edu



