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2.1 Review Flashcards | StudBud
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2.1 Review
2.1 Review
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Questions
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Answers
1
If set B is the set of fractions between 1 and 2, then set B is finite.
False
True
2
If two sets are equal, then they are.....
are infinite
contain the same number of elements
exactly the same
are finite
3
If set M is the months of the year. What is the cardinal number of M?
0
7
3
12
4
If set A is the set of the 50 states and set B is the set of US capitals, then A and B are equivalent.
True
False
5
What does "n(B)" mean?
the set of elements in B
the number of elements in B
doesn't mean anything
the natural numbers
6
If set A is the set of the 5 best movies released released this year, then A is well defined.
False
True
7
Which of the following describes the empty set?
{x|x Ɛ N and x < 1}
{x| x Ɛ N and prime}
{x|x is a vowel}
{x|x is a day of the week ending in y}
8
15 ε {x Ɛ N and 14 < x <15}
True
False
9
10 Ɛ {2, 4, 6, ...}
True
False
10
What is another name for the empty set?
nothing
null
boring
zero
11
What are the Natural Numbers?
numbers that only occur in nature
counting numbers
all of the even integers
the numbers between 0 and 100
12
8 Ɛ {x Ɛ N and x <9}
False
True
