Use the fact that matrices A and B are row-equivalent. 1 2 1 2 5 1 1 A = 3 7 2 2 -2 10 23 7 -2 10 1 0 3 0 -4 0 1 -1 0 2 B = 0 0 0 1 -2 0 0 0 0

Elementary Linear Algebra (MindTap Course List)
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Chapter4: Vector Spaces
Section4.6: Rank Of A Matrix And Systems Of Linear Equations
Problem 77E: Let A and B be square matrices of order n satisfying, Ax=Bx for all x in all Rn. a Find the rank and...
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(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.
independent
O dependent
(f) Let the columns of A be denoted by a1, a2, a3, a4, and a5. Which of the following sets is (are) linearly independent? (Select all that apply.)
O {a1, a2, a4}
O {a1, a2, az}
O {a1, a3, as}
Transcribed Image Text:(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. independent O dependent (f) Let the columns of A be denoted by a1, a2, a3, a4, and a5. Which of the following sets is (are) linearly independent? (Select all that apply.) O {a1, a2, a4} O {a1, a2, az} O {a1, a3, as}
Use the fact that matrices A and B are row-equivalent.
1
2 1
2
5 1
1
A =
7 2
2 -2
10 23 7 -2
10
1 0
3 0 -4
0 1
-1 0
2
B =
0 0
0 0 0 0
0 1 -2
(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.
Transcribed Image Text:Use the fact that matrices A and B are row-equivalent. 1 2 1 2 5 1 1 A = 7 2 2 -2 10 23 7 -2 10 1 0 3 0 -4 0 1 -1 0 2 B = 0 0 0 0 0 0 0 1 -2 (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.
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