-1 4. Answer: A -3 12 and В %3D -4 8 -3 1 4 1 -5 6. -20

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter11: Matrices And Determinants
Section11.FOM: Focus On Modeling: Computer Graphics
Problem 2P: Verify that multiplication by the given matrix has the indicated effect when applied to the gray...
icon
Related questions
Topic Video
Question
Exercises
T: R² → R² defined bv T(x1. r2)= (r, + xɔ. X1 – Xn – 1).
8
Some Special Matrix Products Let A be an m×n matrix.
-1
Then
4.
Answer:
A
-3
12
and
-4
2
8
-3
OA
1
4
1
AO
-5
6.
7
-20
Aln
A
Im A
In Exercises 5 – 8 compute the given matrix product.
)(
3
-1
1
The first two equalities are easily checked using (3.5.3).
It is not significantly more difficult to verify the last two
equalities using (3.5.3), but we shall verify these equali-
ties using the language of linear mappings, as follows:
5.
1
-3
3
1
3
6.
-2
-2
3
-1
1
-1
LAI, (x) = LALI,(x) = LA(x),
2
3
1
2
3
7.
-2
since LI, (x) = x is the identity map. Therefore AIn
A similar proof verifies that ImA
verification of these equalities using the notions of linear
mappings may appear to be a case of overkill, the next
section contains results where these notions truly simplify
А.
-2
3
-1
1
-1
A. Although the
%3D
2
-1
3
1
7
8.
1
5
-2
-1
1
-1
-5
3
the discussion.
9. Determine all the 2 × 2 matrices B such that AB
ВА
where A is the matrix
Exercises
A = (; ;).
-1
4 determine whether or not the matrix prod-
In Exercises 1
ucts AB or BA can be computed for each given pair of ma-
trices A and B. If the product is possible, perform the com-
putation.
10. Let
a
3
A =
1
and
В -
4
2
1
0.
-2
1. А —
and B =
For which values of a and b does AB = BA?
%3D
-2
1
3
-1
-2
1
2
11. Let
2. А —
4
and B
10
-1
1
-3
A =
-2
1
1
2
8 0
2
3
0 1
-5
3. А —
and B =
-1
3
-1
-3
-10
3
Let A' is the transpose of the matrix A, as defined in Sec-
tion 1.3. Compute AA'.
1
-5
Transcribed Image Text:Exercises T: R² → R² defined bv T(x1. r2)= (r, + xɔ. X1 – Xn – 1). 8 Some Special Matrix Products Let A be an m×n matrix. -1 Then 4. Answer: A -3 12 and -4 2 8 -3 OA 1 4 1 AO -5 6. 7 -20 Aln A Im A In Exercises 5 – 8 compute the given matrix product. )( 3 -1 1 The first two equalities are easily checked using (3.5.3). It is not significantly more difficult to verify the last two equalities using (3.5.3), but we shall verify these equali- ties using the language of linear mappings, as follows: 5. 1 -3 3 1 3 6. -2 -2 3 -1 1 -1 LAI, (x) = LALI,(x) = LA(x), 2 3 1 2 3 7. -2 since LI, (x) = x is the identity map. Therefore AIn A similar proof verifies that ImA verification of these equalities using the notions of linear mappings may appear to be a case of overkill, the next section contains results where these notions truly simplify А. -2 3 -1 1 -1 A. Although the %3D 2 -1 3 1 7 8. 1 5 -2 -1 1 -1 -5 3 the discussion. 9. Determine all the 2 × 2 matrices B such that AB ВА where A is the matrix Exercises A = (; ;). -1 4 determine whether or not the matrix prod- In Exercises 1 ucts AB or BA can be computed for each given pair of ma- trices A and B. If the product is possible, perform the com- putation. 10. Let a 3 A = 1 and В - 4 2 1 0. -2 1. А — and B = For which values of a and b does AB = BA? %3D -2 1 3 -1 -2 1 2 11. Let 2. А — 4 and B 10 -1 1 -3 A = -2 1 1 2 8 0 2 3 0 1 -5 3. А — and B = -1 3 -1 -3 -10 3 Let A' is the transpose of the matrix A, as defined in Sec- tion 1.3. Compute AA'. 1 -5
Expert Solution
Step 1

Algebra homework question answer, step 1, image 1

steps

Step by step

Solved in 3 steps with 3 images

Blurred answer
Knowledge Booster
Discrete Probability Distributions
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Algebra and Trigonometry (MindTap Course List)
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:
9781305071742
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning
Elements Of Modern Algebra
Elements Of Modern Algebra
Algebra
ISBN:
9781285463230
Author:
Gilbert, Linda, Jimmie
Publisher:
Cengage Learning,
Elementary Linear Algebra (MindTap Course List)
Elementary Linear Algebra (MindTap Course List)
Algebra
ISBN:
9781305658004
Author:
Ron Larson
Publisher:
Cengage Learning
College Algebra
College Algebra
Algebra
ISBN:
9781305115545
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning