Determine whether or not the given set is (a) Open, (b) Connected, (c) Simply-connected. {(x, y) |

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Determine whether or not the given set is 

(a) Open,

(b) Connected, 

(c) Simply-connected.

{(x, y) | x ≠ 0}

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Calculus

ISBN: 9780495011606

6th Edition

Authors: James Stewart

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