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Q: Is pi sign in math a rational number?

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3.14 is a rational number pi is not. pi is not 3.14

(pi) itself is an irrational number. The only multiples of it that can be rational are (pi) x (a rational number/pi) .

It the radius is r then the area is pi*r*r - which is pi times a rational number. pi is an irrational number, so the multiple of pi and a rational number is irrational.

No, the result is always an irrational number. In more advanced math it is possible to add an infinite amount of rational numbers by way of Taylor Series and get an irrational number. This is how numbers like "Pi" and "e" are derived.

Minus pi. Or minus pi plus any rational number. Here is how you can figure this out (call your unknown number "x", and let "r" stand for any rational number):x + pi = r To solve for "x", simply subtract pi from both sides. That gives you: x = r - pi

Any multiple of or addition to or subtraction from PI is an irrational number. PI divided by PI is 1, a rational number. So is PI times 0 = 0

Pi is irrational.

if it has a square root sign or any symbol (ie. x or pi) then it is irrational. everything else is

No 10*pi is not a rational number because it can't be expressed as a fraction

-Pi is irrational, because it does not terminate or repeat. Whenever you multiply an irrational number by a rational number (-1), the result is an irrational number.

A rational number is a number that has a definite end. For example, pi is never ending and is therefore an irrational number. -4, however, has a definite end. This makes it a rational number.

No. pi/2 is a faction but it is not a rational number.

A rational number is a fraction with an integer in the numerator, and a non-zero integer in the denominator. If you consider pi/2, pi/3, pi/4 (common 'fractions' of pi used in trigonometry) to be 'fractions', then these are not rational numbers.

Yes. For example, if you take any truncated equivalent of pi then it will be rational.

0.712 is rational. It is 712/1000. Irrational numbers are infinite. An example of an irrational number is pi, which is 3.1415926535... .

-Pi is irrational, because it does not terminate or repeat. Whenever you multiply an irrational number by a rational number (-1), the result is an irrational number.

No, it is not.

No 22*pi is not a rational number

A transcendental number is one which is not algebraic. An algebraic number is one which is a root of a non-zero polynomial with rational coefficients.

It can be rounded to 3.14, this however does not make it a rational number.

Pi as relating to a circle is an irrational number because it can't be expressed as a fraction. It is a real number but it is not rational.No.Pi is considered an Irrational number because its decimals do not repeat or terminate, which are the requirements for a number to be rational (in addition to other things)

pi... yum (use sign for pi)

No. Pi is a special kind of irrational number called a transcendental number. This means that no power of pi (other than 0), or any combinations of its powers is rational.

No, since Pi is an irrational number, 2(pi) would still be irrational.

If you multiply or divide an irrational number - such as pi - by ANY rational number (except zero), you will ALWAYS get an irrational number.