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Topic: Help : Linear Algebra
Replies: 1   Last Post: Jun 14, 1996 12:40 PM

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Joong Hyouf Lee

Posts: 1
Registered: 12/12/04
Help : Linear Algebra
Posted: Jun 14, 1996 12:20 AM
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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 p-n zero rows.
If k is the rank of A, how could I show k <= n ?

I appreciate your help.


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