一、平方根与算术平方根的关系 平方根与算术平方根这两个概念很重要,笔者列 除表中所列之外,还须注意,正数a的平方根±a中的正的平方根a是算术平方根的专记号,它表示两个意思:①表示对根号内的非负数进行开方,是运算符号;②表示非负数开平方所得的平方根中的算术平方根,是性质符号。 A. The relationship between the square root and the square root of arithmetic The two concepts of square root and arithmetic square root are very important. The author has listed that in addition to the list, it should be noted that the positive square root a of the square root of a is the square root of the arithmetic square root. Special token, it means two meanings: 1 means that the square root of the square root of the non-negative number squared root is the square root of the non-negative number in the root number, which is an arithmetic symbol; it is a property symbol.