Consider the following sets. Suppose the variable x is an element of the set of integers. A = (x/x² + 1 = 5) B = {x/x² - 4x = 0} C = (x/x + 3 > 0) D = (x/x² is even] Which of the following are true and which are false? If you answer false, give a simple reason why. a) A ⊂ B b) A ⊂ C c) C ⊂ D d) D ⊂ C e) B ⊂ D
Consider the following sets. Suppose the variable x is an element of the set of integers. A = (x/x² + 1 = 5) B = {x/x² - 4x = 0} C = (x/x + 3 > 0) D = (x/x² is even] Which of the following are true and which are false? If you answer false, give a simple reason why. a) A ⊂ B b) A ⊂ C c) C ⊂ D d) D ⊂ C e) B ⊂ D
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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Consider the following sets. Suppose the variable x is an element of the set of integers.
A = (x/x² + 1 = 5)
B = {x/x² - 4x = 0}
C = (x/x + 3 > 0)
D = (x/x² is even]
Which of the following are true and which are false? If you answer false, give a simple reason why.
a) A ⊂ B
b) A ⊂ C
c) C ⊂ D
d) D ⊂ C
e) B ⊂ D
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