Use the fact that matrices A and B are row-equivalent. A =    −2 −5 8 0 −17   1 3 −5 1 5 −1 1 −3 7 −33 1 7 −13 5 −3 B =    1 0 1 0 1   0 1 −2 0 3 0 0 0 1 −5 0 0 0 0 0 (a) Find the rank and nullity of A.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter3: Matrices
Section: Chapter Questions
Problem 17RQ
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Use the fact that matrices A and B are row-equivalent.

A = 
 
−2 −5 8 0 −17
 
1 3 −5 1 5
−1 1 −3 7 −33
1 7 −13 5 −3

B = 
 
1 0 1 0 1
 
0 1 −2 0 3
0 0 0 1 −5
0 0 0 0 0
(a) Find the rank and nullity of A.
rank  
nullity      



(d) Find a basis for the column space of A.
 



                         
                 
                 
                 
 
 




(e) Determine whether or not the rows of A are linearly independent.
independentdependent    

(f) Let the columns of A be denoted by a1a2a3a4, and a5. Which of the following sets is (are) linearly independent? (Select all that apply.)
{a1a2a4}{a1a2a3}{a1a3a5}
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