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Q: What are two characteristics of an irrational number?

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The sum of two irrational numbers may be rational, or irrational.

irrational

Not necessarily. The sum of two irrational numbers can be rational or irrational.

No. The square root of two is an irrational number. If you multiply the square root of two by the square root of two, you get two which is a rational number.

It is proven that between two irrational numbers there's an irrational number. There's no method, you just know you can find the number.

you can't FIGURE OUT THE SQUARE OF THE IRRATIONAL NUMBER

Yes. The sum of two irrational numbers can be rational, or irrational.

An irrational number is one which cannot be expressed as a ratio of two integers.

Next to any rational number is an irrational number, but next to an irrational number can be either a rational number or an irrational number, but it is infinitely more likely to be an irrational number (as between any two rational numbers are an infinity of irrational numbers).

At least one of the factors has to be irrational.* An irrational number times ANY number (except zero) is irrational. * The product of two irrational numbers can be either rational or irrational.

A number that cannot be expressed as a quotient of two integers is called an irrational number. Some common irrational numbers are pi (3.14159....) and the square root of two.

no

"An irrational number is a number that can't be writtenas the ratio of two integers."

Any real number which cannot be expressed as a ratio of two integers is an irrational number.

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

It may be a rational or an irrational number.

Yes, you can.

Yes. pi - sqrt(2) is irrational.

An irrational number is one that cannot be expressed as a ratio of two integers.

Sqrt(2) and sqrt(3)

73 is not irrational!

An irrational number is a real number that cannot be expressed as a ratio of two integers.

An irrational number is a number that cannot be expressed as the quotient of two integers and is a continuous quantity.

Yes. For example, the square root of 3 (an irrational number) times the square root of 2(an irrational number) gets you the square root of 6(an irrational number)

An irrational number is a real number that is not rational. A rational number is one that can be expressed as a ratio of two integers. An irrational number cannot be expressed in this way.