Question

which of the following is not a rational number​

Answer 1

Answer:

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A real number that is not rational is called irrational. Irrational numbers include √2, π, e, and φ. The decimal expansion of an irrational number continues without repeating. Since the set of rational numbers is countable, and the set of real numbers is uncountable, almost all real numbers are irrational.

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Answer 2

Irrational number:

• A real number which is not rational is said to be irrational.
• That is, any real number that cannot be expressed as the quotient of two integers is called irrational numbers.
• The decimal expansion goes on without repeating are said to be irrational numbers.
• All real numbers are irrational.
• Therefore, √2, π, e, and φ are not rational numbers.

Hence, numbers which are not of the form p/q are not rational numbers.

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