It is rational. It is a whole number so it cannot be irrational.
Can be irrational or rational.1 [rational] * sqrt(2) [irrational] = sqrt(2) [irrational]0 [rational] * sqrt(2) [irrational] = 0 [rational]
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.
No. sqrt(2)/pi is not rational.
5.4 = 5 2/5 = 27/5 so 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
Rational.
2 is a rational number and it is also a prime number
that depends on the number. sqrt(2) is irrational, sqrt(4)=2 is rational
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.
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.
irrational
Rational number can be divided into more that the number 2. Irrational number are numbers that can only be divided evenly with the number 2.