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Is pi plus pi a rational or irrational number?


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Answered 2010-05-17 04:30:05

It is irrational, just like pi

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That simply isn't true. The sum of two irrational numbers CAN BE rational, but it can also be irrational. As an example, the square root of 2 plus the square root of 2 is irrational.


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.


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


-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.


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


It is an irrational number


The square of pi is an irrational number.


No, but you can add an irrational number and a rational number to give an irrational.For example, 1 + pi is irrational.



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


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.


It is an irrational number


pi is an irrational number. It is irrational because it cannot be expressed as a ratio of two integers.


A non-zero rational number (10) multiplied by an irrational number (pi) is always irrational.


The number pi, which is approximately 3.14159265..., is an irrational number.


Pi is an irrational number because as a decimal number it is infinite. Pi is 3.14159... .


No; since pi is irrational if you multiply it by a rational number it is still irrational


No, Pi is an Irrational Number.


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 an irrational number because it cannot be expressed as a ratio of two integers.


The square of pi is an irrational number because it can't be expressed as a fraction.


pi is a transcendental (a special type of irrational) number whereas 3 is not only rational, but an integer.pi is a transcendental (a special type of irrational) number whereas 3 is not only rational, but an integer.pi is a transcendental (a special type of irrational) number whereas 3 is not only rational, but an integer.pi is a transcendental (a special type of irrational) number whereas 3 is not only rational, but an integer.


The question cannot be answered because it is based on a false premise.The product of a (not an!) rational number and an irrational number need not be irrational. For eample, the product ofthe rational number, 0, and the irrational number, pi, is 0. The product is rational, not irrational!



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