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Q: Is number 2 rational or irrational?

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

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

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.

10.01 is a rational number

It is an irrational number

No. sqrt(2)/pi is not rational.

Rational.

It is a rational number.

2 is a rational number and it is also a prime number

irrational

5.2 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.

Rational

5.4 = 5 2/5 = 27/5 so it is a rational number.

that depends on the number. sqrt(2) is irrational, sqrt(4)=2 is rational

It is a rational number

Some irrational numbers can be multiplied by another irrational number to yield a rational number - for example the square root of 2 is irrational but if you multiply it by itself, you get 2 - which is rational. Irrational roots of numbers can yield rational numbers if they are raised to the appropriate power

irrational

No number can be both rational and irrational. And, at the level that you must be for you to need to ask that question, a number must be either rational or irrational (ie not neither). 0.555555 is rational.

No rational number is an irrational number.

It can be a rational number or an irrational number. For example, sqrt(2)*sqrt(50) = 10 is rational. sqrt(2)*sqrt(51) = sqrt(102) is irrational.

Rational

Irrational.

it is a rational number but 4.121314..... is an irrational no

No number is irrational and rational.

Integers and fractions that have integers in the numerator and denominator are rational. A number can't be rational and irrational at the same time - irrational means "not rational".