(1)计算
;
(2)计算:
;
(3)化简![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0df8ef4c89a529bba1c94ee6679fd26d.png)
(4)先化简,再求值:
,其中x,y满足
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03257fc6b3af719ad3f3b804c83e6465.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918422402af65619bc1f52ace201ec1c.png)
(3)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0df8ef4c89a529bba1c94ee6679fd26d.png)
(4)先化简,再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1080134809d37201bd2c5ddc3d608932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32f7df74f41b636ffcf87a9168454a8.png)
更新时间:2022-07-09 20:02:44
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相似题推荐
解答题-问答题
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较易
(0.85)
【推荐1】已知多项式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e095fcf337fc21c03f9d2c98c947164f.png)
(1)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74e8a543206352b6a4f4d7c62d066ff4.png)
回答问题:这位同学第______步开始出现错误,错误原因是______.
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(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd2e0881dea2b5d4938ac48b2b1782d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74e8a543206352b6a4f4d7c62d066ff4.png)
回答问题:这位同学第______步开始出现错误,错误原因是______.
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30c3424590d7bb459a33111ec04c30e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af5e7e72a7583e08d8888c71af82877.png)
您最近一年使用:0次
解答题-计算题
|
较易
(0.85)
【推荐2】已知有理数a、b、c在数轴上位置如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/78961551-d341-4e63-a877-bcfba6b47e9c.png?resizew=269)
(1)比较大小:直接用“<”符号把a、b、
、
、c、
连接起来.
(2)化简:
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/78961551-d341-4e63-a877-bcfba6b47e9c.png?resizew=269)
(1)比较大小:直接用“<”符号把a、b、
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5060ad37c403f248c937c1d59af5c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6616da8f7c03dc5d8f1ed993d3cfa25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b9d9315539052dd2e4a67066d8de1c.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbd6787db00147fe75cf05d9ff74227.png)
您最近一年使用:0次