A = B = 1 2 1 5 1 2 W N 0 0 1 0 2-2 3 7 11 25 8-1 8 10 30-4 0 1 -1 0 2 01-2 00 .00 00 0 (a) Find the rank and nullity of A. rank nullity (b) Find a basis for the nullspace of A.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.8: Determinants
Problem 44E
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Use the fact that matrices A and B are row-equivalent.
1 2 1
25 1
0 0
1 0
A =
B =
3 72 2 -2
L 11 25 8 -1 8
[10 3 0-4
0 1
1 0 2
0 1
00
00 00 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.
↓ 1
(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 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, az, a3}
O {a₁, a3, a5}
Transcribed Image Text:Use the fact that matrices A and B are row-equivalent. 1 2 1 25 1 0 0 1 0 A = B = 3 72 2 -2 L 11 25 8 -1 8 [10 3 0-4 0 1 1 0 2 0 1 00 00 00 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. ↓ 1 (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 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, az, a3} O {a₁, a3, a5}
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