3. Is H closed under scalar multiplication? If it is, enter CLOSED. If it is not, enter a scalar in R and a matrix in H whose product is not in H, using a comma separated list and syntax such as 2, [[3,4], [5,6]] for the answer 2, (Hint: to show that H is not closed under scalar multiplication, it is sufficient to find a real number r and an idempotent matrix A such that (rA)2 (rA).) ([1,0], [0,1])
3. Is H closed under scalar multiplication? If it is, enter CLOSED. If it is not, enter a scalar in R and a matrix in H whose product is not in H, using a comma separated list and syntax such as 2, [[3,4], [5,6]] for the answer 2, (Hint: to show that H is not closed under scalar multiplication, it is sufficient to find a real number r and an idempotent matrix A such that (rA)2 (rA).) ([1,0], [0,1])
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Please answer correctly following the same format as the questions. Box the correct answer and I will give a thumbs up if the answer is correct, a thumbs down if answer is incorrect.
Chapter 4.1 Question 6
Please give me the correct solution to the red box.
![A square matrix A is idempotent if A² = A.
Let V be the vector space of all 2 × 2 matrices with real entries. Let H be the set of all 2 × 2 idempotent matrices with real entries. Is H a subspace of the vector space V?
1. Does H contain the zero vector of V?
H contains the zero vector of V
2. Is H closed under addition? If it is, enter CLOSED. If it is not, enter two matrices in H whose sum is not in H, using a comma separated list and syntax such as
[[1,2], [3,4]], [[5,6], [7,8]] for the answer
[16] (Hint: to show that H is not closed under addition, it is sufficient to find two idempotent matrices A and B such
that (A + B)² + (A + B).)
([1,0], [0,1]), ([1,0],[0,1])
3. Is H closed under scalar multiplication? If it is, enter CLOSED. If it is not, enter a scalar in R and a matrix in H whose product is not in H, using a comma separated list and syntax
[3
such as 2, [[3,4], [5,6]] for the answer 2, (Hint: to show that H is not closed under scalar multiplication, it is sufficient to find a real number r and an idempotent matrix
5
A such that (rA)2 ‡ (rA).)
([1,0], [0,1])
4. Is H a subspace of the vector space V? You should be able to justify your answer by writing a complete, coherent, and detailed proof based on your answers to parts 1-3.
H is not a subspace of V](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F725843fe-6d46-4a6d-8b3a-950af3990c4f%2F74f62ff9-1980-4a3a-a812-5bd41735e69d%2Fcqnhinq_processed.png&w=3840&q=75)
Transcribed Image Text:A square matrix A is idempotent if A² = A.
Let V be the vector space of all 2 × 2 matrices with real entries. Let H be the set of all 2 × 2 idempotent matrices with real entries. Is H a subspace of the vector space V?
1. Does H contain the zero vector of V?
H contains the zero vector of V
2. Is H closed under addition? If it is, enter CLOSED. If it is not, enter two matrices in H whose sum is not in H, using a comma separated list and syntax such as
[[1,2], [3,4]], [[5,6], [7,8]] for the answer
[16] (Hint: to show that H is not closed under addition, it is sufficient to find two idempotent matrices A and B such
that (A + B)² + (A + B).)
([1,0], [0,1]), ([1,0],[0,1])
3. Is H closed under scalar multiplication? If it is, enter CLOSED. If it is not, enter a scalar in R and a matrix in H whose product is not in H, using a comma separated list and syntax
[3
such as 2, [[3,4], [5,6]] for the answer 2, (Hint: to show that H is not closed under scalar multiplication, it is sufficient to find a real number r and an idempotent matrix
5
A such that (rA)2 ‡ (rA).)
([1,0], [0,1])
4. Is H a subspace of the vector space V? You should be able to justify your answer by writing a complete, coherent, and detailed proof based on your answers to parts 1-3.
H is not a subspace of V
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