1. By using the standard metrie X. Determine JA and X\A. Justify your answer. ソour State whether A is open in X, closed in X, しth open and closed in X. or neither open nor , closed X, when: メ, in X = IR O A = [-1,11 の A-(-,-3] UC2,00). 9 A = 1 2,4,6,8,103 (い cü) X = IR? OA = { xE IR: dex, os > 2 3 ® A = { (1, 2), (-2, 5) } !!
1. By using the standard metrie X. Determine JA and X\A. Justify your answer. ソour State whether A is open in X, closed in X, しth open and closed in X. or neither open nor , closed X, when: メ, in X = IR O A = [-1,11 の A-(-,-3] UC2,00). 9 A = 1 2,4,6,8,103 (い cü) X = IR? OA = { xE IR: dex, os > 2 3 ® A = { (1, 2), (-2, 5) } !!
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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Question
![1. By using
the
standard
metroic
X.
on
Determine
SA and X\A. Justi fy
ソour
answer.
State whether A is
open in X, closed
in X,
both
open and closed in X, or neither
open
nor
closed
X, when:
in
くい)
X = IR
O A = [-1,11
® A = (-∞, -3] U[2,00)
9 A = 1 2,4,6,8,103
ノ
%3D
(ü) X = IR?
,O A = { x E IR°: den, os > 23
® A = { (1,2), (~2, 5)3
ccüi) X = 10,13
A s C,= { al seguences that starts
with 1 3.
ノ
X = C [0,13,
A = Ef c C[0,1]: frļ>>13
(V)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fead15ed3-ba6a-41c2-9d2a-a187cc2ccb25%2F722af14a-8888-486e-bdd8-391f7232f756%2F9by1pbj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. By using
the
standard
metroic
X.
on
Determine
SA and X\A. Justi fy
ソour
answer.
State whether A is
open in X, closed
in X,
both
open and closed in X, or neither
open
nor
closed
X, when:
in
くい)
X = IR
O A = [-1,11
® A = (-∞, -3] U[2,00)
9 A = 1 2,4,6,8,103
ノ
%3D
(ü) X = IR?
,O A = { x E IR°: den, os > 23
® A = { (1,2), (~2, 5)3
ccüi) X = 10,13
A s C,= { al seguences that starts
with 1 3.
ノ
X = C [0,13,
A = Ef c C[0,1]: frļ>>13
(V)
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