Let X = {a, b, 1, 2, 3} and T = {X, p, {a}, {1,2}, {a,1,2}}. Let B = {b,3} * O B is dense in (X,T) O B is closed in (X,T) O B is open in (X,T) O None of the choices
Let X = {a, b, 1, 2, 3} and T = {X, p, {a}, {1,2}, {a,1,2}}. Let B = {b,3} * O B is dense in (X,T) O B is closed in (X,T) O B is open in (X,T) O None of the choices
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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![Let X = {a, b, 1, 2, 3} and T = {X, p, {a}, {1,2},
{a,1,2}}. Let B = {b,3} *
B is dense in (X,T)
B is closed in (X,T)
B is open in (X,T)
O None of the choices](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff5d110b8-f398-4c88-8a13-a433feacaf03%2F9a8cb117-ef8a-44d4-9027-732548928459%2Ff8toki_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Let X = {a, b, 1, 2, 3} and T = {X, p, {a}, {1,2},
{a,1,2}}. Let B = {b,3} *
B is dense in (X,T)
B is closed in (X,T)
B is open in (X,T)
O None of the choices
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