Verified answer

ANSWER:

The number of elements in Set A if it is the set of letters in the word "MATHEMATICS" is 11.

WHAT IS CARDINAL NUMBER?

We call the number of elements in a set as Cardinality or Cardinal Number.

ELEMENT OF A SET

Each distinct object is called a member or an element of the set.

HOW TO FIND THE CARDINAL NUMBER?

We simply count the members or the elements of the set to find out its cardinality.

EXAMPLE:

For example you have a set of months that starts with the letter J.

A = {January, June, July}

Count the elements. JANUARY     JUNE     JULY

                                          1                 2           3

So therefore, the cardinal number of the set in 3.