18. Do the columns of B span R4? Does the equation Bx = y have a solution for each y in R4?

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter10: Matrices
Section10.CR: Chapter 10 Review
Problem 51CR
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18
A
1
-1
1.4 The Matrix Equation Ax=b 43
30 3
-1 -1
0-4 2-8
2
0 3 -1
B =
257
13-2
0 1 1-5
12-3
-2 -8 2 -1
17. How many rows of A contain a pivot position? Does the
equation Ax = b have a solution for each b in R4?
18. Do the columns of B span R4? Does the equation Bx = y
have a solution for each y in R4?
Transcribed Image Text:A 1 -1 1.4 The Matrix Equation Ax=b 43 30 3 -1 -1 0-4 2-8 2 0 3 -1 B = 257 13-2 0 1 1-5 12-3 -2 -8 2 -1 17. How many rows of A contain a pivot position? Does the equation Ax = b have a solution for each b in R4? 18. Do the columns of B span R4? Does the equation Bx = y have a solution for each y in R4?
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