已知函数
在区间
上的最大值为4,最小值为1,记
.
(1)求实数a、b的值;
(2)若不等式
对任意
恒成立,求实数t的范围;
(3)对于定义在
上的函数
,设
,
,用任意的
将
划分为
个小区间,其中
,若存在一个常数
,使得不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc327011eda2a726cc79f54b1cd50df7.png)
恒成立,则称函数
为
上的有界变差函数,试判断函数
是否是在
上的有界变差函数,若是,求出M的最小值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28748fcd2ade584e5813e4eb50772a90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44284ff1ea50429a0610e13363be6080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d48a1dc037d23eb2850ccf9eec753627.png)
(1)求实数a、b的值;
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/116a34b8252cb1c271b1f32c1e638b38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
(3)对于定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be35b4d8f52e8f440297683c3178e22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b426608a06477f57cb994f4d00e4465d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bc272934625d1232ad34eedc6b23267.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752c287b0680a053e18be60f6e34ebba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae17101747a32ac3aaedd8f72fcef540.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be35b4d8f52e8f440297683c3178e22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9b09511efe31176effed50209b4aa5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2480f87a11c4cd450bc9454ea7276722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc327011eda2a726cc79f54b1cd50df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a034edced7b89d22afc159fe0a84a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b426608a06477f57cb994f4d00e4465d.png)
![](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/2fab11f38ab8593932082ec4d9c8c91f.png)
22-23高一上·上海浦东新·期中 查看更多[2]
(已下线)上海市华东师范大学第二附属中学2022-2023学年高一上学期期中数学试题(已下线)5.2函数的基本性质(作业)(夯实基础+能力提升)-【教材配套课件+作业】2022-2023学年高一数学精品教学课件(沪教版2020必修第一册)
更新时间:2022-11-14 19:20:58
|
相似题推荐
解答题-问答题
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适中
(0.65)
解题方法
【推荐1】函数
的定义域为
.
(1)当
时,求函数
的值域;
(2)若函数
在定义域上是减函数,求a的取值范围;
(3)求函数
在定义域上的最大值及最小值,并求出函数取得最值时x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17b8622597646ebdc6e3876cd045396.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589ed49839c4dc0b033431d88a4c1f94.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
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【推荐2】已知定义在
上的函数
满足:①对任意的
,都有
;②当且仅当
时,
成立.
(1)求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74156327e5659301f391814605688899.png)
(2)类比以下比较
与
的大小关系,尝试判断
的单调性,并用定义证明;
,所以
.
(3)若存在
,使得不等式
成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd29ef32d9bc2e32ef2b8639b57dc9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6521ef75f0a05fe62cdfd2fbbe0430b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74156327e5659301f391814605688899.png)
(2)类比以下比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e1a1611f320c0f358df77aaae3f942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf59c5075f9e6fdf3782b6c0e528237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/842c28d118730117c388c22a1dd21752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a8e92c81bbbaab6124a2324e87f3c66.png)
(3)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb1a0e74cdd1b88109f7da0c9d5d8a72.png)
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【推荐1】已知二次函数
的图象过点
,且不等式
的解集为
.
(1)求
的解析式;
(2)若
在区间
上有最小值2,求实数
的值;
(3)对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331d5e308cd5469e0f28a8d75f79903f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0e705301752424a492f6277ed7774e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa504a3525899b292b2b53aae50fcbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b1e57c8817859628bd3d05451233899.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/021cd7da1b0cac4e4590d120e3b8f770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7538d96f6d68739b259341abab348403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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名校
解题方法
【推荐2】已知二次函数
,非空集合
.
(1)当
时,二次函数的最小值为
,求实数a的取值范围;
(2)是否存在整数a的值,使得“
”是“二次函数的最大值为3”的充分条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/620fff76456e4080c41c51661171c66f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1340a1df9d83760cda7809a1e200532.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
(2)是否存在整数a的值,使得“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
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解题方法
【推荐1】已知二次函数
.
(1)若
为偶函数,求
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上的值域:
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时,
的图象恒在直线
的上方,求实数a的取值范围.
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(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1447dbe580ac5c825776995118e75acf.png)
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【推荐2】已知定义在
上的奇函数:
.
(1)求
值;
(2)解不等式
;
(3)设函数
,若
,
,使得
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78cdd6c404799f92211fc8aab3ebc332.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f947a5775b1e1caaa5679bd3d689a725.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbb5da3d2abe7590d25331112e4dfa5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8688297990e6616b7e1b8ee2269b37e8.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032e8dc00cdc96860c9cbf8ac09677fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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