No they are not. The numbers Pi and e are irrational and are not radicals. There are many others.
It depends on the base, but for either e or 10, it is irrational.
pi, the square root of 2, and e are all irrational numbers.
No, but it is an irrational number.
e
E not only can be irrational, it is.
Irrational.
Nope. Quick example: e (2.71828) is irrational. Therefore 2*e is irrational making both of them elements of the set of irrational numbers. However, dividing the two, e/(2*e), gives you 1/2, which is a rational number.
No they are not. The numbers Pi and e are irrational and are not radicals. There are many others.
It depends on the base, but for either e or 10, it is irrational.
pi, the square root of 2, and e are all irrational numbers.
No, but it is an irrational number.
Any irrational number will, eg √2, π, e.
e (the euler number) is irrational. It has an infinite amount of non-repeating digits, so it can't be expressed as a fraction. (unless you count e/1, which you shouldn't)
No, it is irrational. Furthermore, it is transcendental.
e
One, and e.