Question

3If a number is an element of the set of realnumbers, which of the following statementsmust also be true?The number is an element of either theset of rational numbers or the set ofirrational numbers.The number is an element of both theset of rational numbers and the set ofirrational numbers.The number is an element of the setof rational numbers but not the set ofirrational numbers.The number is an element of the set ofirrational numbers but not the set ofrational numbers.

Answer 1

If a number is an element of the set of real number, then the right answer would be that:

The Number is an element of the set of rational numbers but not the set of irrational numbers

The natural numbers, whole numbers, and integers are all subsets of rational numbers. In other words, an irrational number is a number that can not be written as one integer over another