精品解析:2023年山东省烟台市中考数学真题(解析版)
【淘宝搜索店铺:中小学教辅资源店微信:mlxt2022】2023年烟台市初中学业水平考试数学试题一、选择题1.的倒数是()A.B.C.D.【答案】D【解析】【分析】根据乘积是1的两个数叫做互为倒数解答.【详解】解:∵,∴的倒数是,故选:D.【点睛】本题考查倒数的定义,掌握互为倒数的两个数积为1,是解题的关键.2.下列二次根式中,与是同类二次根式的是()A.B.C.D.【答案】C【解析】【分析】根据同类二次根式的定义,逐个进行判断即可.【详解】解:A、,与不是同类二次根式,不符合题意;B、与不是同类二次根式,不符合题意;C、,与是同类二次根式,符合题意;D、,与不是同类二次根式,不符合题意;故选...
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