The formula for calculating the root number is √ ab = √ a √ b, and the root number is a mathematical symbol. The root sign means a symbol used to represent the root operation of a number or an algebra. For junior high school mathematics, the meaning of the radical sign is to represent the arithmetic square root, and its nature is that the radical sign A is non-negative, and the square of the radical sign A is equal to the absolute value of A. ..

Square root attribute

The property that the root sign is a square root. Any positive number has two square roots, which are in opposite directions. For example, the arithmetic square root of a positive number is x, the other square root of a is -X, and the square root of zero is zero. Negative numbers have no square root, so they have physical roots and chemical roots. If the product of two algebras containing roots no longer contains roots, then these two algebras are physicochemical roots, also called physicochemical factors.

The root sign is a mathematical symbol. 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, and the n-th handwritten and printed characters are represented by √ ~. The number of roots or algebraic expressions are written in the area surrounded by the right side of the V-shaped part on the left side of the symbol and the lower part of a horizontal part above the symbol, and cannot be out of bounds.

Chinese radical symbol mbth belongs to the teaching range of mathematics at the level of mathematics, elementary mathematics and symbolic operation, and is above junior high school.