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.
1, 2 are rational and square root of 2 and pi are irrational.
It is rational
No. sqrt(2)/pi is not rational.
No because -2 is a rational number
Can be irrational or rational.1 [rational] * sqrt(2) [irrational] = sqrt(2) [irrational]0 [rational] * sqrt(2) [irrational] = 0 [rational]
The product of 2 rationals must be rational. The product of a rational and an irrational is irrational (unless the rational is 0) The product of two irrationals can be either rational or irrational.
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 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.
4.6 is rational.
-3
5.4 = 5 2/5 = 27/5 so it is a rational number.
1, 2 are rational and square root of 2 and pi are irrational.
Rational.
It is rational
It is rational