of the quotient space R²/ given below, determine wheth under the quotient projection p: R² → R²/. (a) {[(0,0)]} (b) {[(y)]: (z,y) B₁ (0,0)} (c) {[(z.y)]: (x,y) € B₂(0,0))

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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2. Let be the equivalence relation on the plane R2 having the following equivalence classes:
[(0,0)] = {(r,y): √²+y² <1}, the open unit disc
[(x,y)] = {(z,y)} for all other (r, y) in R²
●
For each subset of the quotient space R2/ given below, determine whether or not it is open by computing its preimage
under the quotient projection p: R2 → R²/.
(a) {[(0,0)]}
(b) {[(y)]: (z,y) EB (0,0)}
(c) {[(x,y)]: (x,y) € B₂(0,0)}
Transcribed Image Text:2. Let be the equivalence relation on the plane R2 having the following equivalence classes: [(0,0)] = {(r,y): √²+y² <1}, the open unit disc [(x,y)] = {(z,y)} for all other (r, y) in R² ● For each subset of the quotient space R2/ given below, determine whether or not it is open by computing its preimage under the quotient projection p: R2 → R²/. (a) {[(0,0)]} (b) {[(y)]: (z,y) EB (0,0)} (c) {[(x,y)]: (x,y) € B₂(0,0)}
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