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Problem 2. Show that Aº UB° C (AUB)⁰. Give an example of two sets A and B for which Aº U Bº ‡ (AUB)º.

Problem 2. Show that Aº UB° C (AUB)⁰. Give an example of two sets A and B for which Aº U Bº ‡ (AUB)º.

Advanced Engineering Mathematics
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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**Problem 2.** Show that \( A^\circ \cup B^\circ \subseteq (A \cup B)^\circ \). Give an example of two sets \( A \) and \( B \) for which \( A^\circ \cup B^\circ \not\subseteq (A \cup B)^\circ \).
Transcribed Image Text:**Problem 2.** Show that \( A^\circ \cup B^\circ \subseteq (A \cup B)^\circ \). Give an example of two sets \( A \) and \( B \) for which \( A^\circ \cup B^\circ \not\subseteq (A \cup B)^\circ \).
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