Find linearly independent vectors which generate al lutions of Ax = 0.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter1: Vectors
Section1.1: The Geometry And Algebra Of Vectors
Problem 11EQ
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Question
Let
[1
1
-5 -1 5
4.
72
1.
-3
-2
-21
A
and
b =
1
-1
0 0 0
a. Find linearly independent vectors which generate all
solutions of Ax = 0.
Answer: The general solution of Ax = O is generated
by u, v and w, where
u =
and w =
Transcribed Image Text:Let [1 1 -5 -1 5 4. 72 1. -3 -2 -21 A and b = 1 -1 0 0 0 a. Find linearly independent vectors which generate all solutions of Ax = 0. Answer: The general solution of Ax = O is generated by u, v and w, where u = and w =
b. Observe that
b = -ai + 5a2 - 5a3 + 2a4 + 5as + 5a6.
Use this to find the (general) solution of Ax = b.
Answer: The solution of Ax = b is the set of all
vectors of the form
+r
+s
+t
where r, s and t are real numbers.
Transcribed Image Text:b. Observe that b = -ai + 5a2 - 5a3 + 2a4 + 5as + 5a6. Use this to find the (general) solution of Ax = b. Answer: The solution of Ax = b is the set of all vectors of the form +r +s +t where r, s and t are real numbers.
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