Concept explainers
(a)
The numbers in the set,
(a)
Answer to Problem 1RE
The natural numbers in the set,
Explanation of Solution
Natural numbers are counting numbers that are greater than
From the provided set of natural numbers,
Therefore, from the set, the only natural numbers is
(b)
The numbers in the set,
(b)
Answer to Problem 1RE
The only whole number in the set,
Explanation of Solution
Whole numbers include all the natural numbers that are greater than zero and also include zero. Natural numbers are a type of whole number. So, from part (a),
Therefore, from the set, the only whole number is
(c)
The numbers in the set,
(c)
Answer to Problem 1RE
The integers in the set,
Explanation of Solution
Integers are numbers that include zero and positive numbers and negative numbers.
From the provided set,
Therefore, from the set, integer is
(d)
The numbers in the set,
(d)
Answer to Problem 1RE
The rational numbers in the set,
Explanation of Solution
Rational numbers are numbers that can be expressed in the form of
From the provided set,
Therefore, from the set, rational numbers are,
(e)
The numbers in the set,
(e)
Answer to Problem 1RE
The irrational number in the set,
Explanation of Solution
Irrational numbers are numbers that cannot be expressed in the form of
From the provided set,
Therefore, from the set, irrational number is
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