已知函数
是偶函数.
(1)求不等式
的解集;
(2)不等式
对任意的
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f030f3603a5650762e2445cf206928.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fd8ba601f455e8e13edc8c9ee4be90.png)
(2)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e6b40a19ee34c54f8ded82105bf1d71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168163183a3d4663be45755f44676191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
20-21高三上·江西南昌·阶段练习 查看更多[2]
更新时间:2020-10-10 13:11:44
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解答题-问答题
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适中
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【推荐1】已知
是定义域为R的奇函数,
,
⑴求实数
的值;
⑵若
在x∈[2,3]上恒成立,求
的取值范围.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e0f4d49a141fc16f373a18ffd5c68e.png)
⑴求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
⑵若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a00b5f7653c848411afc303c9a80988.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5fffd330dd6b9241659d790bd2a7fb2.png)
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解答题-问答题
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适中
(0.65)
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解题方法
【推荐2】已知函数
,
.
(1)若
为奇函数,求实数a的值;
(2)若对任意
,函数
在区间
上的最大值与最小值的差不超过1,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1841abe7f7a310667b9614d7a3737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f28d82625e01109cb926ca9b1f6ae31.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16443926c89badae2361d1290e4781b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78c204be088a8fc6c096eedd5b1e7dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6f82e9ca1263aee2f6456cd20d5706.png)
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解答题-问答题
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适中
(0.65)
【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce6ba1121e01af521f8876e0bfc99c2.png)
(1)讨论函数
的单调性;
(2)设
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与
的图象有三个不同的交点时,求实数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce6ba1121e01af521f8876e0bfc99c2.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.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/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
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适中
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解题方法
【推荐1】已知函数
,
,
的图象经过点
,
,且
.
(1)求不等式
的解集;
(2)若
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恒成立,求此关于x的不等式的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20da4e45ca27b21b03a4d80b166e1aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8610232c77741a37463feba1a66c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c0b5fe273c27337fdfe68ca533d488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68ae3826e4d00aef76d263c58c4ad8ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d910424c594483a278a33845aee0d25.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1b5544e6bbd816c45db57f740c5e8c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6056aea6f29dea546f2627968d7b9aad.png)
您最近一年使用:0次
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适中
(0.65)
名校
解题方法
【推荐2】已知定义在
的函数
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(2)试判断
的单调性,并用定义证明;
(3)若关于
的不等式
在
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9f333cee2ccb2b215d93011a162f7a.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d1ee1c9cc9fc7c1baf83034bdbf2346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e6c78251b2276429222ed917a75357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.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
是定义在
上的奇函数.
(1)求实数
的值;
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(3)解关于
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec8d404e9790faf4aac68990dab4296.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(3)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ea9d1b133c18272246e9030fd51c36.png)
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适中
(0.65)
名校
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【推荐2】已知定义域为
的函数
是奇函数,当
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(1)求函数
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(2)判断函数
的单调性;
(3)若对任意的
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9fb7550d4215c1c95d0b388b3c71ee.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf039c46a25e331446c6ee1e9af3c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b00acbbeb162514acd7c2534d258a8a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-证明题
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适中
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解题方法
【推荐3】已知函数
是定义域为
上的奇函数,且
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(1)求b的值,并用定义证明:函数
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(1)求b的值,并用定义证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b61bb7cb94b4d06f0090df1e365667.png)
(2)若实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a93955a827b93a0f9adda9d281598d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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