The first two columns xj, X2 of X w dim Span(x1, X2, X3, X4) = 2. SECTION 3.6 EXERCISES 1. For each of the following matrices, find a basis for the row space, a basis for the column space, and a basis for the null space. 1 3 2 2 4 (а) 1 4 7 8 -3 1 2 (b) 1 -1 4 -3 8 -2 3 1 3 2 (c) 2 1 4 5 6 2. In each of the following, determine the dimension of the subspace of R3 spanned by the given vectors. 2 1 3 2 2 (а) 422

Elementary Linear Algebra (MindTap Course List)
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ISBN:9781305658004
Author:Ron Larson
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Chapter4: Vector Spaces
Section4.6: Rank Of A Matrix And Systems Of Linear Equations
Problem 69E: Consider an mn matrix A and an np matrix B. Show that the row vectors of AB are in the row space of...
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The first two columns xj, X2 of X w
dim Span(x1, X2, X3, X4) = 2.
SECTION 3.6 EXERCISES
1. For each of the following matrices, find a basis for
the row space, a basis for the column space, and a
basis for the null space.
1
3 2
2
4
(а)
1
4
7
8
-3
1
2
(b)
1
-1
4
-3
8
-2
3
1
3
2
(c)
2
1
4
5
6
2. In each of the following, determine the dimension
of the subspace of R3 spanned by the given vectors.
2
1
3
2
2
(а)
422
Transcribed Image Text:The first two columns xj, X2 of X w dim Span(x1, X2, X3, X4) = 2. SECTION 3.6 EXERCISES 1. For each of the following matrices, find a basis for the row space, a basis for the column space, and a basis for the null space. 1 3 2 2 4 (а) 1 4 7 8 -3 1 2 (b) 1 -1 4 -3 8 -2 3 1 3 2 (c) 2 1 4 5 6 2. In each of the following, determine the dimension of the subspace of R3 spanned by the given vectors. 2 1 3 2 2 (а) 422
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