UPSKILL MATH PLUS

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Learn more*Sets*

A set is a collection of well-defined, distinguishable objects.

The

**set**is denoted by a**capital letter**, whereas the**elements of a set**are represented by**small letters**written inside the curly braces \(\{ \}\).Example:

\(A\) is the set of all even numbers less than \(10\).

\(A =\) \(\{2, 4, 6, 8\}\)

We will extend the concept of sets in the following two forms.

- Functions
- Relations

Almost every day-to-day situation can be mathematically represented either through a function or a relation.

*Some real-life examples of functions and relations*

- The height of a person at a particular age can be expressed as a function.

- The area and volume of geometrical figures can be expressed as a function with one or more variables.

- The temperature in a particular season represents a relationship.

To go from sets to functions and relationships, we need to know the cartesian product of two non-empty sets. We will talk about this in the exercises that follow.

Important!

Refer below to recall set operations.

Reference:

https://pixabay.com/photos/seasons-4-seasons-four-seasons-5880235/