先观察下列的计算,再完成:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f2416746b01442db41e72f89b93309e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f400f1cd6848ac44352ce5563894f3e.png)
(1)请你直接写出结果:
______;
(2)根据你的猜想、归纳,运用规律计算:
①求
的值.
②已知
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f2416746b01442db41e72f89b93309e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f400f1cd6848ac44352ce5563894f3e.png)
(1)请你直接写出结果:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4800088f8bba052c52528d680e75fdf.png)
(2)根据你的猜想、归纳,运用规律计算:
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa69d52a106402a88126394f3bbbaf4.png)
②已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8b7a5f53db5bc99a1e26cbb79c2d276.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ddad599fbd8fe58f129ec9eeeb39f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ebc856291255f2d4a6c20b982a2442.png)
更新时间:2023-10-05 07:20:56
|
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解答题-计算题
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适中
(0.65)
【推荐1】观察下列一组等式,解答问题.
,
,
,
,
……
(1)观察以上规律,请写出第
个等式: (
为正整数);
(2)利用上面的规律,计算:
;
(3)请利用上面的规律,比较
与
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03af8b8ee0561f4f3a028820fba01e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a1c59fe63046725c0d7f7716c61740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77be6df9cb55cdf8532d1f573535974.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a4e1f698469adfe456a5f3f0799959.png)
……
(1)观察以上规律,请写出第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)利用上面的规律,计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16185d1adcd17f2513ce88b8e605ee06.png)
(3)请利用上面的规律,比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/240cd42ef92d53eb03bccb90c14f9eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bbeb55c38c031d87ee506018ed5beb2.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
名校
【推荐2】先化简,再求值:
(1)
,其中
.
(2)
,其中
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c6b18d7e87d46c3dcda0329b6c0dce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e62ac7aafccc1fdb9c85deda81b7b5a2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ec6f5dec3a1a28495e689adbaa016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc12fed7a6f4777c0fccc896e624281.png)
您最近一年使用:0次