对于在区间
上有意义的两个函数
和
,如果对于任意的
,都有
,则称
与
在区间
上是“接近”的两个函数,否则称它们在
上是“非接近”的两个函数.现有两个函数
,
(
,且
),给定一个区间
.
(Ⅰ)若
与
在区间
都有意义,求实数
的取值范围;
(Ⅱ)讨论
与
在区间
上是否是“接近”的两个函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be35b4d8f52e8f440297683c3178e22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c9af82980dc7e23df29ad780c93ced.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc69dd6b191f31ea8d87f867a456a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be35b4d8f52e8f440297683c3178e22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be35b4d8f52e8f440297683c3178e22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69912d099cb8fd2fffdf32b2cae06a78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b880333840bce17b4b34e09dbda425e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/221f9c828a6de90bcae98354634a8ad5.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/221f9c828a6de90bcae98354634a8ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/221f9c828a6de90bcae98354634a8ad5.png)
更新时间:2020-01-02 13:07:23
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】函数
的定义域为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45fc64ad4cea9fb538880bd22bf56f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45bcd8f6ede8cc2513ad41402f40086.png)
(1)当
时,求
.
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28c8ae56cef66c0ba19066fd42c7ef58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45fc64ad4cea9fb538880bd22bf56f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45bcd8f6ede8cc2513ad41402f40086.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711b21672fd907c5c92fee1d649e7003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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(0.65)
名校
解题方法
【推荐2】函数
的定义域为
,函数
的定义域为
,值域为
.
(1)记
,其中
为整数集,写出
的所有子集;
(2)
且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3fa0e925b9241385fbab0d3c2b9f2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfba7114bd446a4e42b276de54cdfd50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fab11f38ab8593932082ec4d9c8c91f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86bca295475a9cc84ccc685902d6ad00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d428f8eb1032b2e2afca28b65fe33d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c79270bd3afb7c288a74efe2a1035e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
【推荐3】已知函数
且
.
(1)求函数
的定义域;
(2)判断
的奇偶性并予以证明;
(3)若
,解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267b11f004b9a1accac7b77891a7d2bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fa1476cf3552b9ae91ef039b1c6c80.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/830b593990ea7d757a511993792d1b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6136cf7c0c2c1f6659f31b07d9a0d9.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐1】已知函数
,
.
(1)当
时,求函数
在区间
上的值域;
(2)对于任意的实数
和
,当
,
时,都有
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df844fda65a8a38cd3d810268e60a844.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97aadd67532e28190ab1962ed5292687.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dccf1f9faac56117d6d3dd1dddd286d.png)
(2)对于任意的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0496d81c441e6cfa9c26ff7e83746eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18460a96aebeb7b0a9963f476893f30d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032e8dc00cdc96860c9cbf8ac09677fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-证明题
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名校
【推荐2】若函数
满足对其定义域内任意
成立,则称
为 “类对数型”函数.
(1)求证:
为 “类对数型”函数;
(2)若
为 “类对数型”函数,
(i)求
的值;
(ii)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17cabd0c980e2a2d94e6384806b066b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/677ea84198270927eb97795d72f7e3b9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be572ddbc6881fadfb1eafad117b0ba9.png)
(ii)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c18b89601f58b3fbac9eec87bff011.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐3】已知函数
.
(1)证明:
为偶函数;
(2)用定义证明:
是
上的增函数;
(3)求满足不等式
的
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33e1e658f5fe3aeb43b98c2cadfb0b1.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)用定义证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
(3)求满足不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa11968441f80225225f81c9789345c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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