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List the numbers in the set that are;
a) Natural numbers
b) Integers
c) Ratioml numbers
d) Irrational numbers.
e) Real numbers

Let's analyze the set of numbers provided in the image and classify them according to the categories given:

The set of numbers is: \( \{-6, \frac{1}{2}, -1.3333, 7.5, 1.23456, 2, 81, \sqrt{3} \} \)

### a) Natural numbers
Natural numbers are positive integers starting from 1. The natural numbers in the set are:
\[ 2, 81 \]

### b) Integers
Integers are whole numbers that can be positive, negative, or zero. The integers in the set are:
\[ -6, 2, 81 \]

### c) Rational numbers
Rational numbers are numbers that can be expressed as the ratio of two integers (fractions). All integers, terminating decimals, and repeating decimals are rational. The rational numbers in the set are:
\[ -6, \frac{1}{2}, -1.3333, 7.5, 1.23456, 2, 81 \]

### d) Irrational numbers
Irrational numbers cannot be expressed as the ratio of two integers. They have non-terminating and non-repeating decimal expansions. The irrational number in the set is:
\[ \sqrt{3} \]

### e) Real numbers
Real numbers include all rational and irrational numbers. Therefore, all numbers in the set are real numbers:
\[ -6, \frac{1}{2}, -1.3333, 7.5, 1.23456, 2, 81, \sqrt{3} \]

Would you like more details or have any questions? Here are some additional questions related to this topic:

1. How can you prove that \(\sqrt{3}\) is an irrational number?
2. Can a number be both rational and irrational? Explain why or why not.
3. What is the difference between natural numbers and whole numbers?
4. How do you determine if a decimal is a rational number?
5. Can you find other examples of irrational numbers?
6. What are complex numbers, and how do they relate to real numbers?
7. Explain why all integers are rational numbers.
8. Can you convert the repeating decimal \(-1.3333\) to a fraction?

**Tip:** When classifying numbers, always remember to check if they can be expressed as a fraction to determine if they are rational.

Understand how to classify numbers into natural, integers, rational, irrational, and real categories. Explore examples and explanations for each category with detailed solutions.

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