计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99e274b76c4bc680d943f14b07061d6f.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99e274b76c4bc680d943f14b07061d6f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a97f572149f2f2929c93fab0855dfe.png)
更新时间:2023-05-03 17:34:54
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相似题推荐
解答题-计算题
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适中
(0.65)
【推荐1】阅读下面材料,并解答问题.
分式
的最大值是多少?
解:
,
因为
,所以
的最小值是2,所以
的最大值是2,所以
的最大值是4,即
的最大值是4.
解答下列问题:
(1)分式
的最大值是 ;
(2)求分式
的最大值;
(3)若分式
的值为整数,请直接写出整数
的值.
分式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56890b8d9d83a4cde38fbfff2859ac18.png)
解:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8a1454de270b1127a0b1063430cc96.png)
因为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39241f2eeccaa16d0550d851619bcb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/319baf657063f9c5a4e0fbaddc3d21d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1584f5cf3a2873799754cbee83dd07b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56890b8d9d83a4cde38fbfff2859ac18.png)
解答下列问题:
(1)分式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3458449d9d9c629789d88fe1a7632654.png)
(2)求分式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432513d71d550b180670d2d2b622a2f1.png)
(3)若分式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b6f6e4913073642f11db9d9086851d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】观察下列等式:
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b864b095d5c0b7ae86118176ef608aa3.png)
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/947dd6d5b7404ad013c382a8a7d6bd10.png)
③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5ea0eed60a4f92783d07a81b7da46e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07096af3b99fd1cb11c31f19a2c6408e.png)
(1)根据等式规律写出第④个等式,并验证其正确性:______.
(2)猜想第
个等式,并证明.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b864b095d5c0b7ae86118176ef608aa3.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/947dd6d5b7404ad013c382a8a7d6bd10.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5ea0eed60a4f92783d07a81b7da46e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07096af3b99fd1cb11c31f19a2c6408e.png)
(1)根据等式规律写出第④个等式,并验证其正确性:______.
(2)猜想第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次