如图,一只蚂蚁从点
沿数轴向左爬了2个单位长度到达点
,点
表示
,设点
所表示的数为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/9e10c6c3-43d1-467e-a2ab-bd4c70690bff.png?resizew=224)
(1)实数
的值是______.
(2)求
的值;
(3)在数轴上还有
,
两点分别表示实数
和
,且有
与
互为相反数,求
的立方根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/9e10c6c3-43d1-467e-a2ab-bd4c70690bff.png?resizew=224)
(1)实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ab3bb37da5a87b764486921e425400.png)
(3)在数轴上还有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3468ebaaf349ae508c5de3b9c71a1598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc735318e5a68f0c5ed6c0dbce92423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72453a4d0745a1cc802dfc69f63cecea.png)
20-21七年级上·浙江杭州·单元测试 查看更多[11]
(已下线)【新东方】初中数学1286-初一上山东省泰安市肥城市2020-2021学年八年级下学期期中数学试题湖北省潜江市高石碑镇第一初级中学2021-2022学年七年级下学期期中数学试题(已下线)专题12 实数与数轴-【微专题】2022-2023学年七年级数学上册常考点微专题提分精练(浙教版)(已下线)第4章 实数 单元综合检测(重点)(练习)-2022-2023学年八年级数学上册同步精品课堂(苏科版)河北省沧州市泊头市2022-2023学年八年级上学期期中考试数学试题(已下线)贵州省2023-2024学年八年级上学期质量测评数学试题(一)(已下线)专题3.3 实数【十大题型】-2023-2024学年七年级数学上册举一反三系列(浙教版)(已下线)专题11.3 实数【十大题型】-2023-2024学年八年级数学上册举一反三系列(华东师大版)(已下线)专题2.3 实数【十大题型】-2023-2024学年八年级数学上册举一反三系列(北师大版)(已下线)专题4.3 实数【十大题型】-2023-2024学年八年级数学上册举一反三系列(苏科版)
更新时间:2023-04-04 13:23:57
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】已知点A(a,b)满足
,将点A向下平移3个单位长度得到点B.
(1)求A、B的坐标;
(2)若点C(a,-3), S△ABC=6,求C点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8b9e8422a7357602aefa95fe5d19d5.png)
(1)求A、B的坐标;
(2)若点C(a,-3), S△ABC=6,求C点的坐标.
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
【推荐1】如图1,在平面直角坐标系中,点A、B在坐标轴上,其中A(0,a),B(b,0)满足|a﹣3|+
=0.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/31/65f5957a-d507-4e3a-a6d7-f3ab9a61470a.jpg?resizew=228)
(1)求A、B两点的坐标;
(2)将线段AB平移到CD,点A的对应点是C,点B的对应点是D,且C、D两点也在坐标轴上,过点O作直线OM⊥AB,垂足为M,交CD于点N,请在图1中画出图形,直接写出点C、D的坐标,并证明MN⊥CD.
(3)如图2,将AB平移到CD,点A对应点C(﹣2,m),连接AC、BC,BC交y轴于点E,若△ABC的面积等于13,求点E的坐标及m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7b5b2334f861cdf491920dc00777a7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/31/65f5957a-d507-4e3a-a6d7-f3ab9a61470a.jpg?resizew=228)
(1)求A、B两点的坐标;
(2)将线段AB平移到CD,点A的对应点是C,点B的对应点是D,且C、D两点也在坐标轴上,过点O作直线OM⊥AB,垂足为M,交CD于点N,请在图1中画出图形,直接写出点C、D的坐标,并证明MN⊥CD.
(3)如图2,将AB平移到CD,点A对应点C(﹣2,m),连接AC、BC,BC交y轴于点E,若△ABC的面积等于13,求点E的坐标及m的值.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】(1)若实数
满足等式
,求
的值;
(2)
已知,求
的平方根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895334c1291b3c03bab3875636aa272c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/050ea707b97d2d0e416d3373b0432ed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1777430562c6627eb23d7ac1455ef2e7.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c5171cc435c380a07b12873d9f87a09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
名校
【推荐1】(1)解分式方程:
.
(2)先化简,再求值:
,其中
.
(3)已知
与
是正数a的平方根,试求
的立方根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1558dee70506a52112618958ac99a332.png)
(2)先化简,再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb67086c7e583aacca5fdccc55f8dab3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b482df9046a13963befb97f3167768de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051ae8e1ac1ab7af2682949e59dfe1cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d39216688d742d75a8d1339d56ff607.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】【发现】
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/882f9eb8f6a0546e669297b7af725c92.png)
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ba992cb7aeb8d1fea1a06cbf33ff09.png)
③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd9bf38ba7aab964aa5c73fdd5b0b54.png)
④
…
(1)根据上述等式反映的规律,请再写出一个等式:______.
【归纳】等式①,②,③,④,所反映的规律,可归纳为一个真命题:对于任意两个有理数
,
,若
,则
,
满足的数量关系为______;
【应用】根据上述所归纳的真命题,解决下列问题:
(2)若
与
的值互为相反数,且
,求
的值.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/882f9eb8f6a0546e669297b7af725c92.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ba992cb7aeb8d1fea1a06cbf33ff09.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd9bf38ba7aab964aa5c73fdd5b0b54.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805d2410debc99144d161c3827548d8.png)
(1)根据上述等式反映的规律,请再写出一个等式:______.
【归纳】等式①,②,③,④,所反映的规律,可归纳为一个真命题:对于任意两个有理数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd65171f7c62ffc38d1e0b77613a069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
【应用】根据上述所归纳的真命题,解决下列问题:
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e5b606be07e2ec396af7f5b9d6d7095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53d5ed7c2b391f00bfbe980549a6ed9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecda9594c73beacb44f225cc9ba28af7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】如图,一只蚂蚁从点A沿数轴向右爬了2个单位长度到达点B,点A表示
,设点B所表示的数为m.
(2)求
的值;
(3)数轴上有C、D两点分别表示实数c和d,且有
,求
的平方根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9db9373e74ecf5d63ad98afe66aa4ba.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219254293537cc14fbd07e952a780560.png)
(3)数轴上有C、D两点分别表示实数c和d,且有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f888858265d9c48c78f8f898f9dad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72453a4d0745a1cc802dfc69f63cecea.png)
您最近一年使用:0次