函数
是实数集R上的奇函数,当
时,
.
(1)求
的值和函数
的表达式;
(2)求证:方程
在区间
上有唯一解.
![](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/e5c4a84fe979c7af124db3cfc7ca9459.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a32822a106d217ffdec43557a236f786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求证:方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
更新时间:2018-01-10 12:43:29
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】已知函数
的定义域为
,且对一切
都有
,当
时,有
;
(1)求
的值;
(2)判断
的单调性并证明;
(3)若
,解不等式
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95cef8b3e4df16d54b2231c4474b88a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74156327e5659301f391814605688899.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b88fd6a9d8f205836c6bbdeb1b8f3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5debf92e2eb9ef3cc9f894b82ddce671.png)
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适中
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解题方法
【推荐2】设函数
定义在
上,对于任意实数
,
,恒有
,且当
时,
.
(1)求
的值.
(2)求证:对任意的
,有
.
(3)证明:
在
上是减函数.
(4)设集合
,
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ac82501b461d044f78e7ae5b86cd3c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5456d544e2f8d22c08f3ccee002dad4a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54b6a060d6c51a328341df76013bd89.png)
(2)求证:对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
(4)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34f4d43634c9b34cf3a7aa58ef9f68a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0061c00ac16b749237aebb6c55a4257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐1】设函数
(
为实数).
(1)当
时,若函数
为定义在
上的奇函数,且在
时,
,求函数
的解析式;
(2)当
时,求关于
的方程
在实数集
上的解.
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/64f07328cadb49a799344ff1665562da.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/1d92dedd27a94964958b39fa5c5b5383.png)
(1)当
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/748ef5d1d1524434a4257f808045eb9a.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/f0d8d2772c034efd82d1d219ff399e71.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/da7d75bebb984d3d878698b41d169130.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/63e54c7d787d42798fa7f4118ed7cced.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/2b7f347406f84a03b10d02e205f5ebc4.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/f0d8d2772c034efd82d1d219ff399e71.png)
(2)当
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/4db5468c28874a66883c6d53334ae29b.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/1a585ecf035042db8e3e5199ed6b5baf.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/3bcd5091743d4b2db72907262254512f.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/da7d75bebb984d3d878698b41d169130.png)
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【推荐2】已知
是定义在(-1,1)上的奇函数,当x∈(0,1)时,
.
(1)求
在(-1,1)上的解析式;
(2)若
是周期为2的函数,且x∈(-1,1)时
,求
时的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ba4fd0990bf06bb09edf1d946be657e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790eacf3ea708dc5cfbb85164e57fb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a8c2b2e31f82e83872311cc59b7110f.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐3】已知函数
.
(1)若
,求
的取值范围;
(2)若
是以
为周期的奇函数,且当
时,有
,求函数
的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf3e38f29ae52079c4d6bf22b429824.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1daad6aa18ec06006934bb822bf3010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05486718d0f498abca5c2c21912bb26d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d1a94ea3c278c2197572cc1b7725b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fce3a6f46fd57e6c89625944481051.png)
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适中
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【推荐1】已知函数
,
(其中
).
(Ⅰ)如果函数
和
有相同的极值点,求
的值,并直接写出函数
的单调区间;
(Ⅱ)令
,讨论函数
在区间
上零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff23205d65fe5a1a99c25fa477d1ad0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132779c16e27d9d17a87995e866496c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da989240786ef7c3e2d903f30caf59e3.png)
(Ⅰ)如果函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(Ⅱ)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6374d9bbf77ec20013dcebb8d1ac3424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4133958c09fdd82cda8838c9cf46ccda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e1ad5f13f0db2ea40417706731f7547.png)
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解答题-证明题
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适中
(0.65)
名校
解题方法
【推荐2】函数
和
的大致图象如图所示,两个函数的图象在第一象限内的交点为
.
![](https://img.xkw.com/dksih/QBM/2022/12/16/3132136599896064/3132975756730368/STEM/0cc3c13d8e814b348f69657372451105.png?resizew=151)
(1)指出图中曲线
分别对应哪一个函数(无需证明);
(2)比较
的大小,并按从小到大的顺序用“<”连接起来;
(3)若
,其中a,b为整数,求a,b的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee6881a170f6ef9ed5c133b95c2f448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cfdccf88b4dd13ddcf13373b71c5034.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662fdb3a0fb24b7150b03a5a900f9a59.png)
![](https://img.xkw.com/dksih/QBM/2022/12/16/3132136599896064/3132975756730368/STEM/0cc3c13d8e814b348f69657372451105.png?resizew=151)
(1)指出图中曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9feabc99f62ee569b460e61526e2e.png)
(2)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/021075457b72448f29e792b3a83c01a6.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8275416d82b8b0f41408ad8a2ae90b.png)
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【推荐3】已知函数
的最小正周期为
.
(1)求证:函数
在
上至少有两个零点;
(2)若关于
的方程
在
上恰有三个根,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105968cb877c624009f8f93a3ac41ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
(1)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a20457d180264f78d611dc7893d735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1613d377a07850c72cbec354b7a3000f.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60edb6fa14b45ae71ff358c183ab94e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155d86e4af5a4a6b156c5ed291277751.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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适中
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【推荐1】设
.
(1)求函数
的反函数
;
(2)判断函数
在定义域上的单调性,并给出理由;
(3)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88eaf4f16c06b074f2d3f2366be8074.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135bcf6d7f7c04641823b90f1d038eee.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135bcf6d7f7c04641823b90f1d038eee.png)
(3)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d22e1109ce8d3dd39f11692d2318968.png)
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解答题-证明题
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适中
(0.65)
【推荐2】已知函数
,
,且满足
.
(1)求实数a的取值范围;
(2)求证函数
存在唯一零点;
(3)设
,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb0c7b952731190aea730a9fb18a603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a02872c8c4d0f941ad55b2f88fa58ea.png)
(1)求实数a的取值范围;
(2)求证函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c419949314258c61e4436e16477fa42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a51414243ca45bcca00d14a9865f93.png)
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