Integers, rational numbers, real numbers, complex numbers, quaternions are some systems.
Counting numbers is not a valid answer.
no
No, it is not, because real numbers include negative numbers. The square root of a negative number is an imaginary number
- (400^.5) = -(20) = -20 you just do the square root of the number, and attach the negative in front. and if you ever include the negative inside the square root, you'd have to deal with i, which is an imaginary number that signifies the square root of negative 1.
The square root is the number which is times by itself, to get the square number.
Sometimes the square root of a positive number can be irrational, as in the square root of 2 (which is a non-perfect square number), but sometimes it is a rational number, as in the square root of 25 (which is a perfect square number).
the square root of a number is the number that is multiplied by itself to get that number, for example the square root of 9 is 3
3 is the square root of 9. 9 is a square number. 9 is the square root of 81. 81 is a square number.
No, there is no real number that satisfies the equation √(-28). The square root of a negative number is not defined in the real number system. However, if we extend our number system to include complex numbers, we can define a square root of -28 as √(-28) = 2√7i, where i is the imaginary unit.
Nothing. You cannot have a square root of a negative number. The square root of negative one is called i, but i is an imaginary number. It does not exist and does not follow the properties of real numbers. (For example, if a and b are positive, then the square root of a times the square root of b is the square root of ab. But the square root of -7 is not the square root of 7 times i.)
It's not a square if it has no root. If a number is a square then, by definition, it MUST have a square root. If it did not it would not be a square.
The number 3 is the square root of the number 9 !
No - a natural number is a whole number. Therefore, the square root of 49 is a natural number, but the square root of 50 is not.