1. (i) which are not. Identify which of the following subsets of R2 are open and (a) A = (1, 3) x (1,2) (b) B = (1,3) x {1,2} (c) C = AUB (ii) Provide a sketch and a brief explanation to each of your answers. [6 Marks] Give an example of a bounded set in R2 which is not open. (iii) [2 Marks] Give an example of an open set in R2 which is not bounded. [2 Marks]
1. (i) which are not. Identify which of the following subsets of R2 are open and (a) A = (1, 3) x (1,2) (b) B = (1,3) x {1,2} (c) C = AUB (ii) Provide a sketch and a brief explanation to each of your answers. [6 Marks] Give an example of a bounded set in R2 which is not open. (iii) [2 Marks] Give an example of an open set in R2 which is not bounded. [2 Marks]
Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter4: Vector Spaces
Section4.4: Spanning Sets And Linear Independence
Problem 25E: Determine whether the set S={1,x2,2+x2} spans P2.
Related questions
Question
![1. (i)
which are not.
Identify which of the following subsets of R2 are open and
(a)
A = (1, 3) x (1,2)
(b)
B = (1,3) x {1,2}
(c)
C = AUB
(ii)
Provide a sketch and a brief explanation to each of your answers.
[6 Marks]
Give an example of a bounded set in R2 which is not open.
(iii)
[2 Marks]
Give an example of an open set in R2 which is not bounded.
[2 Marks]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd66c7573-6777-48ff-9bfb-9b3df1a769a6%2F1ec70cec-c3cc-41f8-8f4b-ac8da340f919%2Faekesng_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. (i)
which are not.
Identify which of the following subsets of R2 are open and
(a)
A = (1, 3) x (1,2)
(b)
B = (1,3) x {1,2}
(c)
C = AUB
(ii)
Provide a sketch and a brief explanation to each of your answers.
[6 Marks]
Give an example of a bounded set in R2 which is not open.
(iii)
[2 Marks]
Give an example of an open set in R2 which is not bounded.
[2 Marks]
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