1 1 0 3 9. 1 1 1-2 3 3 2 -1

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter5: Orthogonality
Section5.3: The Gram-schmidt Process And The Qr Factorization
Problem 23EQ
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Question
Number 9 2.4 part a b c and d
a) Find a basis for the nullspace of the matrix.
b) Find a basis for the row space of the matrix.
c) Find a basis for the column space of the matrix.
Do the following for the matrices in Exercises 5–12:
b)
-2
0.
с)
1
15.
given
(P
1
1
16. Without form:
linear combina
to the zero pol
nomials are lin
17. Show that det(.
only if rank(A)
18. Suppose that A
m > n, then the
d) Determine the rank of the matrix.
(Parts (a)-(c) do not have unique answers.)
1
5.
1
19. Suppose that A
m < n, then the
dent.
1
[
-2
4
6.
20. Consider the li
P1(x) = x2 + -
nomial p3(x) so
basis for P2 in the
Lemma 2.11.
21. a) Show that the
-1
2 -1
0.
7.
-1
1 0
8.
1 -1
-1
1 0 1
1 1 0
3 4
[
9.
1 1
1
2 -1
-2
10.
P2(x) = x² +
span P2.
3 3 2 -1
1 0-1 3.
Transcribed Image Text:a) Find a basis for the nullspace of the matrix. b) Find a basis for the row space of the matrix. c) Find a basis for the column space of the matrix. Do the following for the matrices in Exercises 5–12: b) -2 0. с) 1 15. given (P 1 1 16. Without form: linear combina to the zero pol nomials are lin 17. Show that det(. only if rank(A) 18. Suppose that A m > n, then the d) Determine the rank of the matrix. (Parts (a)-(c) do not have unique answers.) 1 5. 1 19. Suppose that A m < n, then the dent. 1 [ -2 4 6. 20. Consider the li P1(x) = x2 + - nomial p3(x) so basis for P2 in the Lemma 2.11. 21. a) Show that the -1 2 -1 0. 7. -1 1 0 8. 1 -1 -1 1 0 1 1 1 0 3 4 [ 9. 1 1 1 2 -1 -2 10. P2(x) = x² + span P2. 3 3 2 -1 1 0-1 3.
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