2022年中学《二次根式》单元测试题及答案2 .pdf
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2022年中学《二次根式》单元测试题及答案2 .pdf
学习好资料欢迎下载2011 秋南安市梅岭中学二次根式单元测试题班级姓名座号成绩一、选择题:(每小题 2 分,共 26 分)1、下列代数式中,属于二次根式的为()A、B、C、(a1)D、2、在二次根式,中,x 的取值范围是()A、x1 B、x1 C、x1 D、x1 3、已知(x1)2 =0,则(xy)2的算术平方根是()A、1 B、1 C、1 D、0 4、下列计算中正确的是()A、B、C、D、5、化简=()A、B、C、D、6、下列二次根式:,其中是最简二次根式的有()A、2 个B、3 个C、1 个D、4 个7、若等式成立,则 m 的取值范围是()A、mB、m3 C、m3 D、m3 8、已知直角三角形有两条边的长分别是3cm,4cm,那么第三条边的长是()A、5cm B、cm C、5cm 或cm D、cm 9、把二次根式化简,得()A、x2xy B、C、D、43x1a211x2y532yxyx2)(aa1132433121561306156306a5.03aba221a411222yxnm2312312mmmm2121775224yxxyxxxyx1222yxx学习好资料欢迎下载10、下列各组二次根式中,属于同类二次根式的为()A、和 B、和 C、和 D、和11、如果 a1,那么化简 =()A、B、C、D、12、下列各组二次根式中,x 的取值范围相同的是()A、与B、()2与C、与D、与13、化简()2,得()A、2 B、4 4x C、4x4 D、2 二、填空题:(每小题 3 分,共 36 分)14、用“”或“”符号连接:(1);(2);(3)15、的相反数是,绝对值是,()2=16、如果最简二次根式与是同类二次根式,那么a 的值是17、计算:=;()2=;=18、当 x 时,二次根式有意义;当 x 时,代数式有意义19、若 1x2,则化简=20、化简下列二次根式:(1)=;(2)=21、如果等式成立,那么 x 的取值范围是22、若有意义,则 x 的值是23、化简:=;=;=24、计算:=;=2ba222ab1a1a12213)1(a1)1(aaaa1)1(1)1(aaaa1)1(x1xx2x12x22x1xx11442xx32x537233623753535333aa27248?312)5(13xxx 122)1()2(xx2318yxmx421112?xxxxx33224211yxyx2385aba22183文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10学习好资料欢迎下载25、如果 xy=5,xy=1,那么 =三、解答题:(2630题各 4 分,3133 题各 6 分,共 38 分)26、计算:27、计算:28、计算:29、计算:yxyx22xy)323125.0()48(81aababaab313272232321418122)65()154(5333yxxyxy?文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10学习好资料欢迎下载30、计算:31、是否存在实数m,使最简二次根式与是同类二次根式?若存在,求出 m的值;若不存在,请说明理由。32、先化简,再求值:,其中 x=2)23()25)(25(2mm26xxxx12)1111(2文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10学习好资料欢迎下载2011 秋南安市梅岭中学二次根式测试题(二)参考答案一、CDACB ABCDB DCA 二、14、(1);(2);(3)15、,16、2 17、;5 18、x;x1 且 x0 19、32x 20、(1)3xy ;(2)21、x1 22、3 23、;24、;25、5 三、26、27、28、29、30、31、解:不存在实数 m,使最简二次根式与是同类二次根式理由是:若与是同类二次根式,则m 2=26m 这时,m=14。而当 m=14时,与都不是最简二次根式32、原式化简得,当 x=时,原式=33、AC=cm,AB=cm 35535614383131x2mmn2212yx310ba 2833102411aab 323232xyyx28152622mm262mm262mm2611x22122)26(文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10文档编码:CX9V3Z6H2A2 HJ4B6W6S8P10 ZU8R4M4J1F10