No, it is not.
rational
No, it is not.
No, it is not.
No, they are not.
No, it is rational.
No. Radical(9) is +3 or -3, both of which are rational.
In terms of mathematical concepts, there is no difference at all. In practical terms, some rational exponents or rational number will result in rational answers while radical exponent won't. But that is hardly a significant difference.
The square root of 64 is 8, which is a rational number.
Sqrt(25) is -5 or +5, both of which are rational.
A rational expression is an expression that contains a radical, i.e., a root.
Yes, they are.
Yes, they are.