No, it is rational.
It is rational. It is rational. It is rational. It is rational.
"Rational" is an adjective and so there cannot be "a rational" (and certainly not "an rational"). Any answer would depend on whether the question was about a rational number, a rational person, a rational argument or "a rational" combined with some other noun.
It is rational.
It is rational.
IBM Rational Team Concert was created in 2008-06.
IBM Rational solution for Collaborative Lifecycle Management was created in 2011-06.
Rational
1.14 is rational.
Rational. Rational. Rational. Rational.
rational
4.6 is rational.
No, it is rational.
It is a rational number
It is rational. It is rational. It is rational. It is rational.
Rational.
No, it is rational.