计算.
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e42a588e58140a39c3bc01657939cf.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3f4eca9aae253df50dc4654d092b22.png)
(3)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e42a588e58140a39c3bc01657939cf.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3f4eca9aae253df50dc4654d092b22.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55430bc761e931dfa32c9ca33d7a584.png)
更新时间:2023-10-03 11:08:01
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解答题-计算题
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适中
(0.65)
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【推荐1】计算:
(1)(﹣2)2+(﹣
)﹣1﹣(3﹣2)0
(2)a2﹣(a2)3﹣(﹣a)2
(1)(﹣2)2+(﹣
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(2)a2﹣(a2)3﹣(﹣a)2
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解答题-计算题
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适中
(0.65)
【推荐1】计算与化简:
(1)化简![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5230fa213f87f8e66d62bb56ca60ccec.png)
(2)化简![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338e1d71f88087cd9268791120b16624.png)
(3)计算![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3422b82b1d72e72498949cfe73488b2a.png)
(4)计算
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5230fa213f87f8e66d62bb56ca60ccec.png)
(2)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338e1d71f88087cd9268791120b16624.png)
(3)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3422b82b1d72e72498949cfe73488b2a.png)
(4)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3390096103b2049412a6104e0d17657.png)
您最近一年使用:0次
解答题-计算题
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【推荐2】阅读下列材料,然后解答问题:
.(一)
.(二)
.(三)
以上这种化简的步骤叫做分母有理化.
还可以用以下方法化简:
.(四)
(1)请用不同的方法化简
:(在横线上写出步骤)
①参照(三)式得
____________________________.
②参照(四)式得
____________________________.
(2)化简:
.(保留过程)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f933c6a7c13912e8d51bb2c6a0e35fe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85d2e1da1ea11913afab3349ebd242b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a67e7e962a6d2699bb0a732624e36f7.png)
以上这种化简的步骤叫做分母有理化.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6d7b69b454f0a51548dd8a3482174a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfb1d50c622d37e1937f6548cad7ac3d.png)
(1)请用不同的方法化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15230226b5298ca83c6e164772c21003.png)
①参照(三)式得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e17788fc1eeb4fe04bef98f43004346.png)
②参照(四)式得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e17788fc1eeb4fe04bef98f43004346.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3eeaee8e15cee8efb22be29a9b75aeb.png)
您最近一年使用:0次