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Question: topology please write clearly ade is my guess...

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Consider R with the standard topology and the map f: R→ {-1, 0, 1} defined by: f(x)--1 when x -10; 0 when -10 < x< 10; and 1 when x 2 10. Select each and every set that is an open sets in the quotient topology on (-1, 0, 1 (there are 3 out of 5). A. -1,0,1 O B. O C E. 1O

Topology:

Please write clearly. A,D,E is my guess.

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