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7th Edition

James Stewart + 2 others

ISBN: 9781305071759

**(a)**

To determine

**To give:** An example of a natural number.

Answer

The example of a natural number is 2.

Explanation

Natural numbers are the numbers which are used in counting.

That is,

Hence, natural numbers will be greater than zero and will have no fractions.

Therefore, the example of a natural number is 2.

**(b)**

To determine

**To give:** An example of an integer that is not a natural number.

Answer

An integer that is not a natural number is −4.

Explanation

Integers are the set of all whole numbers which includes positive, negative values and also includes zero. And it is denoted by a letter

That is,

Natural numbers are counting numbers which means that they are greater than zero.

An example of an integer that is not a natural number can be a negative number or zero.

Therefore, an example of an integer that is not a natural number is −4.

**(c)**

To determine

**To give:** An example of a rational number that is not an integer.

Answer

The example of a rational number that is not an integer is

Explanation

A rational number is a number which is in the form *p* and *q* are integers and

For example;

A rational number that is not an integer can be any fraction because integers are the set of all whole numbers which are positive, negative numbers and also includes zero.

Therefore, an example of a rational number that is not an integer is

**(d)**

To determine

**To give:** An example of an example of an irrational number.

Answer

The example of an irrational number is

Explanation

An irrational number is a number which cannot be expressed in the form *p* and *q* are integers and

For example;

Therefore, the example of an irrational number is

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