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Q: Is 2 irrational number

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Sometimes. eg the irrational number √2 squared is 2 which is rational (2 = 2/1) eg the irrational number √(√2) squared is √2 which is irrational.

The product of two irrational numbers may be rational or irrational. For example, sqrt(2) is irrational, and sqrt(2)*sqrt(2) = 2, a rational number. On the other hand, (2^(1/4)) * (2^(1/4)) = 2^(1/2) = sqrt(2), so here two irrational numbers multiply to give an irrational number.

The square root of 2 is irrational, yet the product of it with itself is 2. So the answer is no.

No.3*sqrt(2) and sqrt(2) are irrational. But their quotient is 3, which is rational.

Any irrational number, added to 0.4 will give an irrational number.

irrational

Yes. sqrt(2) + sqrt(2) = 2*sqrt(2), an irrational number.

Can be irrational or rational.1 [rational] * sqrt(2) [irrational] = sqrt(2) [irrational]0 [rational] * sqrt(2) [irrational] = 0 [rational]

It is an irrational number

Yes, the square root of 2 is an irrational number.

No.

It isn't. 2 is perfectly rational.You are confused with the square root of 2, which is an irrational number.

Any irrational number will, eg √2, π, e.

The square root of 2 is 1.141..... is an irrational number

Not always. For example sqrt(2) and 1/sqrt(2) are both irrational, but their product is the rational number 1.

irrational

Yes, they are irrational.

It is rational. It is a whole number so it cannot be irrational.

It can't be expressed as a whole number. The square root of two is irrational, and the product of an irrational number and a rational number is also irrational. So 8*sqrt(2) is irrational.

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.

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

22=4, so no, it's not an irrational number.

The square root of 3 is an irrational number

Yes, multiplying a rational and an irrational number gives an irrational product. For example 3 * pi = 3pi = 9.424789... or 2 * sqrt 2 = 2^(3/2).

5*sqrt(2) is one irrational number. 1/sqrt(2) is another irrational number.Their product is 5!5*sqrt(2) is one irrational number. 1/sqrt(2) is another irrational number.Their product is 5!5*sqrt(2) is one irrational number. 1/sqrt(2) is another irrational number.Their product is 5!5*sqrt(2) is one irrational number. 1/sqrt(2) is another irrational number.Their product is 5!