对于整数n,定义[
]为不大于
的最大整数,例如:[
]=1,[
]=2,[
]=2.
(1)直接写出[
]的值;
(2)显然,当[
]=1时,n=1,2或3.
①当[
]=2时,直接写出满足条件的n的值;
②当[
]=10时,求满足条件的n的个数;
(3)对72进行如下操作:72
[
]=8
[
]=2
[
]=1,即对72进行3次操作后变为1,类似地:
①对25进行 次操作后变为2;
②对整数m进行3次操作后变为2,直接写出m的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7029b0c648c4be94b7e90007008ce800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7029b0c648c4be94b7e90007008ce800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3f8c3ba00c59e0634ed10fa85289de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c03286fb276ad2d19110cffc189fc2cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30efdb9c7eb4b788352056f3edf21635.png)
(1)直接写出[
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e84accbdfc051019a7c6c1df40b871.png)
(2)显然,当[
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7029b0c648c4be94b7e90007008ce800.png)
①当[
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7029b0c648c4be94b7e90007008ce800.png)
②当[
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7029b0c648c4be94b7e90007008ce800.png)
(3)对72进行如下操作:72
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f62ce8f5386201ce59c0ffb2d7e9aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e62588dbde891257c545569b8627cede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3423d6cf43c229449a0ecf8e1fdeec8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2d313d61cf920ee86a10a874e7167d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a375dc27766d7d3416ad45dcd2883c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e051d14fd6a787387995331f5e6d026.png)
①对25进行 次操作后变为2;
②对整数m进行3次操作后变为2,直接写出m的最大值.
更新时间:2022-07-24 06:56:37
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【推荐2】某中学数学兴趣小组在一次课外学习与探究中遇到一些新的数学符号,他们将其中某些材料摘录如下:对于三个实数
,
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如:
,
.
请结合上述材料解答下列问题:
(1)
,
.
(2)如果
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(3)如果
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e515c80daf34fff5923cd86142398bf3.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e3d23984e4a956c81bc39ad251ed83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/647e043ba78811a806a9cd8613b5018b.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4911f99ea391cfb4276944353a2ad554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f7c9c5d0fef029c3ccf9f48bd65894.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3adefc171fb6f7abac0918785e7a2e29.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bddbba79832c431824821db0cf4590b.png)
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【推荐1】阅读下列材料:
∵
,即
,
∴
的整数部分为1,小数部分为
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请根据材料提示,进行解答:
(1)
的整数部分是______,小数部分是______.
(2)如果
的小数部分为
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的整数部分为
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的值.
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∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04fce49266e798c98067730b8e9814ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e5dabf5ac70e3ae8e931a723e16d99.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9563540452712a60d70f76cf22a868c9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01961669cd597f61fa48e9853d678bb8.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1d3a8dd91d1d5bb627a5417239080d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
【推荐2】非负数a的算术平方根记作
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【推荐3】阅读下面的文字,解答问题:大家知道
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的整数部分为2,小数部分为
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,
.
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(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50690dab38f4512eb72e18b7f86cf6f6.png)
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解题方法
【推荐1】对x,y定义一种新运算T,规定T(x,y)= (mx +ny)(x+2y) (其中m,n均为非零常数),如T(1,2)=5m+10n
(1)若T(-1,1)=0且T(0,2)=8,则m=_______.
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= ______ .
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(2)当u2≠v2 时,若T(u,v)=T(v,u)对任意有理数u,v都恒成立,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0be44077d42cfffece905b1af13e000.png)
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【推荐2】对于任意四个有理数a,b,c,d,我们规定:
,例如:
,根据上述规定解决下列问题:
(1)计算
;
(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86da2ffcbb11ec76c2e39884bf87a01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc20b02795c9b0e840e985bebc68d174.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf621d9be171841a49fda5b8b82955ec.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7ab1fb4900069b566a9ee460142e2a2.png)
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