An irrational is a number that the decimal point never ends. ie: 3.1415......... and so on. they never end
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The square root of the number 31 is irrational. This is used in math.
They define irrational numbers
No, it is irrational as it has no end
No, 156 is a rational number An irrational number is a number that cannot be expressed as a simple fraction.
An irrational number is a real number that cannot be expressed as a simple fraction, meaning it cannot be written as a ratio of two integers. These numbers have non-repeating, non-terminating decimal representations. Examples of irrational numbers include the square root of 2, pi, and the golden ratio. They are contrasted with rational numbers, which can be expressed as fractions.