Let A be the matrix consisting of columns equal to the given vectors. A = [w, | w] -1 5 -4 -2 Then the subspace W spanned by the vectors w, and w, is the same as the subspace spanned by the columns of A. By definition, this says that W is the column space of A. Recall that in this case, this means that the orthogonal complement of W is the null space of AT. That is, w- = null(AT). Thus, we must find this null space. First, find AT. 5 -2 AT = 1. Write the augmented matrix and use row operations to reduce. 5 -2 1. -4 1 -4 1.

Elementary Linear Algebra (MindTap Course List)
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ISBN:9781305658004
Author:Ron Larson
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Chapter5: Inner Product Spaces
Section5.CR: Review Exercises
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Let A be the matrix consisting of columns equal to the given vectors.
A = [w, | w,]
-1
5 -4
-2
1
Then the subspace W spanned by the vectors w, and w, is the same as the subspace spanned by the
columns of A. By definition, this says that W is the column space of A.
Recall that in this case, this means that the orthogonal complement of W is the null space of A". That is,
w = null(A"). Thus, we must find this null space.
First, find AT.
1
-2
AT =
1
-4
Write the augmented matrix and use row operations to reduce.
5
-2
=
1
-4
1
-1
1
-4
Transcribed Image Text:Let A be the matrix consisting of columns equal to the given vectors. A = [w, | w,] -1 5 -4 -2 1 Then the subspace W spanned by the vectors w, and w, is the same as the subspace spanned by the columns of A. By definition, this says that W is the column space of A. Recall that in this case, this means that the orthogonal complement of W is the null space of A". That is, w = null(A"). Thus, we must find this null space. First, find AT. 1 -2 AT = 1 -4 Write the augmented matrix and use row operations to reduce. 5 -2 = 1 -4 1 -1 1 -4
Let W be the subspace spanned by the given vectors. Find a basis for wt.
-1
1
W2
-4
-2
Transcribed Image Text:Let W be the subspace spanned by the given vectors. Find a basis for wt. -1 1 W2 -4 -2
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