算术平方根是一个重要的概念,有些同学在解题 时,由于对概念理解不深,往往忽视算术根的特点与 应用的条件,出现了下述常见的错误。 The square root of arithmetic is an important concept. Some students often ignore the characteristics of the arithmetic root and the conditions of the application because of the lack of understanding of the concept when solving a problem. The following common mistakes have emerged.