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Irrational Numbers have been known since very early times. For example, it was recognised that the length of the diagonal of a unit square was not a rational number.

Q: When were irrational numbers invented?

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Irrational numbers are real numbers.

yes * * * * * No. Rational and irrational numbers are two DISJOINT subsets of the real numbers. That is, no rational number is irrational and no irrational is rational.

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Not necessarily. The sum of two irrational numbers can be rational or irrational.

There are an infinite number of irrational numbers.

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It was invented by Dr.Tejas Shah on 17 january 1567.

They are irrational numbers!

They are numbers that are infinite

Irrational numbers are real numbers.

yes * * * * * No. Rational and irrational numbers are two DISJOINT subsets of the real numbers. That is, no rational number is irrational and no irrational is rational.

properties of irrational numbers

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No. Irrational numbers are real numbers, therefore it is not imaginary.

Yes, no irrational numbers are whole numbers.

Not necessarily. The sum of two irrational numbers can be rational or irrational.

No, but the majority of real numbers are irrational. The set of real numbers is made up from the disjoint subsets of rational numbers and irrational numbers.

All irrational numbers are not rational.