Use the fact that matrices A and B are row-equivalent. -2 -5 8 0 -17 3 -5 1 A = -9 -21 33 3 -87 7 -13 5 10 1 0 1 -2 0 0 1 -5 1 -3 1 0 3 B = 0 0 0 0 0 0 (a) Find the rank and nullity of A. rank nullity (b) Find a basis for the nullspace of A. (c) Find a basis for the row space of A.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter3: Matrices
Section3.2: Matrix Algebra
Problem 29EQ: A square matrix is called upper triangular if all of the entries below the main diagonal are zero....
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Use the fact that matrices A and B are row-equivalent.
-2
-5
8 0 -17
1
3
-5 1
A =
-9 -21
33 3 -87
1
7 -13 5
-3
1 0
1 0
1
0 1 -2 0
3
B =
0 0
0 1 -5
0 0 0 0
(a) Find the rank and nullity of A.
rank
nullity
(b) Find a basis for the nullspace of A.
(c) Find a basis for the row space of A.
(d) Find a basis for the column space of A.
(e) Determine whether or not the rows of A are linearly independent.
O independent
O dependent
(f) Let the columns of A be denoted by a,, a,, az, a, and ag. Which of the following sets is (are) linearly independent? (Select all that apply.)
O {a,, a2, a4
1'
O {a,, a2, a3}
O {a,, a3, ag}
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Transcribed Image Text:Use the fact that matrices A and B are row-equivalent. -2 -5 8 0 -17 1 3 -5 1 A = -9 -21 33 3 -87 1 7 -13 5 -3 1 0 1 0 1 0 1 -2 0 3 B = 0 0 0 1 -5 0 0 0 0 (a) Find the rank and nullity of A. rank nullity (b) Find a basis for the nullspace of A. (c) Find a basis for the row space of A. (d) Find a basis for the column space of A. (e) Determine whether or not the rows of A are linearly independent. O independent O dependent (f) Let the columns of A be denoted by a,, a,, az, a, and ag. Which of the following sets is (are) linearly independent? (Select all that apply.) O {a,, a2, a4 1' O {a,, a2, a3} O {a,, a3, ag} Need Help? Watch It I 1
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