Also, which of those 5 sets are compact?Thanks For each of the following subsets of the plane, draw the set, state whether it is open,closed, or neither, and justify your answer in a word or two:12.21270LIMITS AND OPEN SETS [1 2]a) {(x, y') : -1 < x < +1, y = 0},c) {(x, v) : x + y' = 1},e) {x, y') : x = 0 or y = 0}.b) {(x, y) : x and y are integers},d) {(x, y) : x + y < 1},

Answered: Image /qna-images/answer/b7b97e85-ff53-48c2-9590-fa52c5b6dd00.jpg

Answered: 270 LIMITS AND OPEN SETS [12] a) {(x,…

270 LIMITS AND OPEN SETS [12] a) {(x, y) : -1 < x < +1, y = 0}, c) {(x. v) : x + y' = 1}, b) {(x, y) : x and y are integers}, d) {(x, y) : x + y < 1}, e) {(x, r) : x = 0 or y = 0}.

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

Also, which of those 5 sets are compact?

Thanks

For each of the following subsets of the plane, draw the set, state whether it is open,
closed, or neither, and justify your answer in a word or two:
12.21
270
LIMITS AND OPEN SETS [1 2]
a) {(x, y') : -1 < x < +1, y = 0},
c) {(x, v) : x + y' = 1},
e) {x, y') : x = 0 or y = 0}.
b) {(x, y) : x and y are integers},
d) {(x, y) : x + y < 1},

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