Question

Identify all sets to which the number 3.1214122144 . . . belongs. Choose from irrational,rational,whole,and integer

Answer 1

It is an irrational number. That is because rational numbers can be put into fractions. But because this decimal goes on forever, you can't put it into a fraction. This is also not a whole number or an integer. Whole numbers and integers do not have any decimals or fractions in them, but this number is a decimal. Therefore, this number is irrational.
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