Let A = {5, {5, 9}, {9}, 0}. Answer each of the following questions. 1) |A| = =
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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Transcribed Image Text:Let A = {5, {5, 9}, {9}, Ø}. Answer each of the following questions.
1) | A| =
2) Which of the following statements are true? There may be more than one correct answer.
A. {5} ≤ A
B. {5,9} € A
c. {5} € A
D. {9} A
OE. {9} € A
F. ØE A
G.5 € A
OH. {5,9} CA
01.9 CA
OJ. Ø CA
OK. 5 CA
OL. 9 € A
=
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