No, (\pi - 1) is not a rational number. Since (\pi) is an irrational number, subtracting a rational number (1) from it does not change its irrationality. Therefore, (\pi - 1) remains irrational.
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.
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Rational
Circumference = pi * d, where d = diameter=> 1 = pi * d{divide by pi on both sides}=> d = 1/pi1/pi = 0.3183098862diameter = 0.318 (3 s.f)
1.14 is 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.
No, it is rational.
Rational.
It is rational
0.38 is a rational number because it can be expressed as a fraction