已知偶函数
的定义域为
,
,当
时,函数
.
(1)求实数m的值;
(2)当
时,求函数
的解析式;
(3)利用定义判断并证明函数
在区间
的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/862df674d5668eb2c8d67c889866463f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccf94d6b4617d326cc501f7a58eedfdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78797f0e7fa4241f96d37187d6e2bcfb.png)
(1)求实数m的值;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/842c2ef9893cc67e621e272fa0be9926.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)利用定义判断并证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
21-22高一上·山东青岛·期中 查看更多[4]
更新时间:2021-11-21 17:08:54
|
相似题推荐
解答题-证明题
|
适中
(0.65)
名校
解题方法
【推荐1】已知实数
大于0,定义域为
的函数
是偶函数.
(1)求实数
的值并判断并证明函数
在
上的单调性;
(2)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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e210ff2cddd457e5db2b514330ce90a.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(2)对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf039c46a25e331446c6ee1e9af3c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3052d3e2b3036f45fe4b75c984c07e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解答题-问答题
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适中
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解题方法
【推荐2】已知函数
定义在
上且满足下列两个条件:
①对任意
都有
;②当
时,有
.
(1)证明函数
在
上是奇函数;
(2)判断并证明
的单调性.
(3)若
,试求函数
的零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0594dc49c6b37342e7772675d63bbcc2.png)
①对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fbdbcfa7fa249f05422719141f8c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb2b3c82a7f8fbe9d5eb1e5bdbc8a34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fbdbcfa7fa249f05422719141f8c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3990fdae4400e0a96605d75564bddcff.png)
(1)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0594dc49c6b37342e7772675d63bbcc2.png)
(2)判断并证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92f510317faf07e1b7d538482e9cc068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46ba414ad55bd5a360efa881815dba6.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐3】已知函数
是定义在
上的奇函数.
(1)用定义法证明函数
的单调性
(2)求不等式
的解集;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94d71804658ee452aaf7f9db4ef4161b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(1)用定义法证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5982c7eb2183cc8690bae89d9891cfa3.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】已知函数
(
且
)是定义在
上的奇函数.
(1)求
的值.
(2)求函数
的值域.
(3)当
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d156abbead334a54af01cc0072215b2f.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/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaae91ed6da60e86e3bb9b3eb7e03e60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08d7e9595202b952bc9097617fa02636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
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解题方法
【推荐2】已知定义在
上的奇函数
,在
时,
且
.
(1)求
在
上的解析式;
(2)证明:当
时,
;
(3)若
,常数
,解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047056c99b39c70fa40d3c8178e5b631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79755b547b90a7f9e9a7c6a3961eb4ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e133b6374c6fe9b0e5e52ec1a6867eb4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047056c99b39c70fa40d3c8178e5b631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec7a126e69669d0374f88122823818d.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047056c99b39c70fa40d3c8178e5b631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2bda06ddaf7487acaed3f3be4c50bfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bdb3f4fcefc13f06d815f12767e3c37.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
解题方法
【推荐3】已知函数
是定义在
上的奇函数,且当
时,
.
(1)求
的解析式;
(2)若正数m,n满足
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a46ccef5ddef05f2aa8ab837d05b3dd9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若正数m,n满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caee77d4821d513c99bce6dc2b94b899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
您最近一年使用:0次