It is equal to 21/2 which is a rational number
It is: 2 times the square root of 21 and it's an irrational number
the square root of 21
The square root of 21 is 4.58257569495584.
First note that 84=4x21 and 4 is a perfect square. So square root of (84)=square root (4x21)=Square root (4) Square root (21)= 2 multiplied by the square root of 21. You can also write this using rational exponents, but this is not in radical form. It is an equivalent expression, however. 2 x (21)1/2
irrational
No. The square root of an integer is either an integer, or an irrational number.
irrational, it has a never ending decimal
Yes. The square root of a natural number (positive integer) is either an integer, or an irrational number.
0.8095
It is equal to 21/2 which is a rational number
It is: 2 times the square root of 21 and it's an irrational number
the square root of 21
No because it is 2 times the square root of 21 which is an irrational numberThe square root of 84 is not a rational number
the square root of 21
Yes, albeit an irrational number
The square roots of 21 are 4.5826 (rounded) and the negative of the same number.