有理式

有理式
[yǒu lǐ shì]
rational expression (math.)

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有理式
yǒulǐshì
没有开方运算,或有开方运算但被开方数不含字母的代数式。如a²＋b,2/(x-y)。 {rational expression; rational formula; algebraic expression without root-extracting operation or with it but the radicand has no letters, as a²＋b,2/(x-y)}