It is a root of a number where that root cannot be made into a rational number. For example, the cuberoot(27/64) is 3/4 and so is not a radical but cuberoot(32/64) = cuberoot(1/2) = 3√(1/2) cannot be simplified or rationalised further.
No, they are not.
No, it is not.
The square root of 64 is 8 which is a rational number
Yes, they are.
It is a root of a number where that root cannot be made into a rational number. For example, the cuberoot(27/64) is 3/4 and so is not a radical but cuberoot(32/64) = cuberoot(1/2) = 3√(1/2) cannot be simplified or rationalised further.
No, it is not.
No, they are not.
No, it is not.
The square root of 64 is 8 which is a rational number
It is a rational number because the square root of 64 is 8 which is a rational number
No. Radical(1.21) = 1.1, for example, is rational.
Yes, they are.
Yes, they are.
.95 is a rational number or square root of 121 a rational number
Sqrt(25) is -5 or +5, both of which are rational.
If the number inside the radical is a perfect square or a ratio of perfect squares.