A rational number is the one which can be expressed in the form p/q.
For example, 2/3 is a rational number because it can be expressed in the form p/q.
Whereas, Irrational Numbers cannot be expressed in the form of p/q.
For example, 1.2324252627 and so on.
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Yes. 2+sqrt(3) and 5+sqrt(3). Their difference is 3, which is rational.
10.01 is a rational number
In between any two rational numbers there is an irrational number. In between any two irrational numbers there is a rational number.
Rational
Such a product is always irrational - unless the rational number happens to be zero.