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David W. Sutherland _________________________________________________________ dws3963

Week 8____________________________________________________________________5.4.1

http://hotard108.tripod.com/311hwk8b.html

a) what is the rank of:

> a=matrix(3,3,[1,1,2,0,0,0,5,5,17]);

without reducing, it is obvious that there are two independent rows. Therefore, the rank of this matrix is 2.

b)what is the rank of:

> b=matrix(2,2,[2,2,1,6]);

again the rank is 2 since there are two independent rows.