计算:
(1)
;
(2)
;
(3)如图所示,化简:
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e99fff8001b36c65ec8d5d4b02359f11.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4e87830dd55828c69f29faab0ca72c.png)
(3)如图所示,化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5cd5f142d7b6c46eed2ad7f91d3a16.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/10/63caa246-4c89-4814-85d5-1789df3be090.jpg?resizew=192)
更新时间:2023-09-19 12:49:33
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解答题-作图题
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适中
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【推荐1】画出数轴,把数︱-3︳,-3.5,0,-(-5),
,+4在数轴上表示出来,并用“<”把它们连接起来
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0415147b2dc37f0580c2e64df1f4c337.png)
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解答题-问答题
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名校
【推荐2】在数轴上表示下列各数,并把这些数用“<”号连接起来.
,0,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec7bda6e9ac291a8628ce6e6b406bc26.png)
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解答题-计算题
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【推荐1】二次根式中有这样一些相铺相成的“对子”:
,
,它们的积不含根号,我们称这两个二次根式互为有理化因式.于是,二次根式的除法可以这样解:例如
,
,像这样通过分子、分母同乘一个式子把分母中的根号化去叫做分母有理化.分母有理化除了可以进行运算,还有其它一些用处.
(1)计算:
;
(2)比较:
与
的大小;
(3)化简:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e108638ce4fb2c163a7f59eb6cf83d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55d1ab47c97e7076d971e14914d8a6b1.png)
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(1)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39e5f88ee882a0908194fa93da7d9a59.png)
(2)比较:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15a90123a26f161d04fe99f27e76f86.png)
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(3)化简:
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【推荐2】计算:
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÷
﹣(
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9572957d65348e410fb139233e6d40f.png)
(2)
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