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Set A consists of the distinct letters of the word "PHILIPPINES"

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Anjeanielolojanviz

Set A would consist of {P,H,I,L,N,E,S}. In mathematics, a set is a list of unique items. The items inside a set are called elements. Elements must be different from one another; they should not repeat. So, the letters P, H, I, L, N, E, and S are elements of set A.  

 

SETS

Set

A set is a collection of elements that must be unique and distinct from one another. A set could be about anything. It could be about all four-legged animals or all even numbers.  

Element

Elements are what composes a set. It is also called member. They are written inside curly brackets “{ }” and are separated from each other with a comma “,”.

Types of Sets

There are many types of sets. To name a few, there are finite, infinite, and null.  

  • A finite set has limited elements. An example is a set of letters in the word CASIO, then presented as {C, A, S, I, O}
  • An infinite set has unlimited elements and is noted with an ellipsis “…”. An example is a set of all odd numbers which would be {1, 3, 5, 7, 9, 11, …}.
  • A null set is a set with no elements or an empty set. A great example would be a set of odd numbers that end with even numbers. It would be represented as { } or ∅.

Here are some other types of sets and their explanations.

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