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What is set of real numbers?
A real number is a rational number that is not imaginary. 5, 3/4, and 8.6 are all real numbers. 3i is not a real number.
What number is irrational?
An irrational number is a real number that cannot be expressed as a ratio of two integers. In decimal terms, it is a real number that has either a terminating decimal or an infinitely recurring decimal. This would apply whatever the integer base, such as binary, octal, hexadecimal.
Why decimal is considered as rational number?
A decimal need not be a rational. A non-terminating, non recurring decimal is an irrational number. Only a terminating decimal or a recurring decimal is rational and that is because such a number can be expressed as a ratio of two integers.
Is pi a recurring decimal a terminating decimal or an irrational number?
Pi is an irrational number
What is the difference between recurring and non recurring decimal?
A recurring decimal is a rational number, a non-recurring one may be rational (for example 0.2 = 1/5) or irrational.
