Important facts on rational and irrational numbers
* Zero is rational number as it can written as 0/1, 0/2, 0/3, 0/4
* Every natural number is always a whole number.
* Every integer is not a whole number because it also include negative integers and whole number is only positive integers and zero.
* Every rational number is not a whole number because it also includes negative integers and terminating numbers.
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* Negative number may not be the square root of any number.
* Every real number is not a irrational number.
* The square roots of all positive integers are not irrational because it may be perfect square.
* There are infinite number of rational numbers in between two rational numbers.
* The number which is perfect square is always a rational number.
* (x^m)^n = x^(m*n)
* (x^a) * (x^b) = x^(a + b)
* (x^a) / (x^b) = x^(a - b)
* (x^a) * (y^a) = (x*y)^a
* There are infinite number of rational numbers in between two rational numbers.
* The number which is perfect square is always a rational number.
* (x^m)^n = x^(m*n)
* (x^a) * (x^b) = x^(a + b)
* (x^a) / (x^b) = x^(a - b)
* (x^a) * (y^a) = (x*y)^a
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