The root sign is a symbol used to represent the root operation of a number or an algebra. If a? =b, then A is the n-th root of B or A is the 1/n power of B. The n-th handwritten and printed characters are represented by, and the number of roots or algebraic expressions are written in the area surrounded by the left side of the symbol and the right side of the horizontal part above the symbol, which cannot be out of bounds.

The root number means the root number, and the root number now in contact is generally the second root number, that is, there is no corner mark. He said that the multiplication of two numbers is equal to the number in the symbol, for example, 4=2 and the root number 4=2.

Extended data:

The value range of the number in the root sign is within the real number range:

1, the root sign cannot be negative, and its operation result is not negative.

2. It can be negative under odd root sign.

Not limited to real numbers, that is, when considering imaginary numbers, even roots can be negative numbers, and i=√- 1 can be used.

The root sign is a symbol used to represent the root operation of a number or an algebra. If a? =b, then a is the n-th root of b or a is the 1/n power of b.