名校
1 . 已知函数
.
(1)用单调性的定义证明
在定义域上是单调函数;
(2)证明
有零点;
(3)设
的零点
落在区间内
,求正整数
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8618f67bb45822944be82f067f7d00.png)
(1)用单调性的定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38036a5ce61868dda9bd298aaff6d6ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2017-11-27更新
|
282次组卷
|
5卷引用:六盘水市实验一中 2017-2018 学年高一第一学期期中考试数学试题
六盘水市实验一中 2017-2018 学年高一第一学期期中考试数学试题贵州省六盘水市实验一中2017-2018学年高一上学期期中考试数学试题【校级联考】安徽省定远重点中学2018-2019学年高一上学期第三次月考数学试题(已下线)【师说智慧课堂】4.5.1 函数的零点与方程的解-2021-2022学年高中数学新教材同步检测题河南省鄢陵县第一高级中学2023-2024学年高一下学期开学考试数学试题
2 . 函数
是实数集
上的奇函数, 当
时,
.
(1)求
的值;
(2)求函数
的表达式;
(3)求证:方程
在区间(0,+∞)上有唯一解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d5e7bf6b10966e5ef8144de6430140b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b530377e3fe56b7988935dd73d9dccd.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)求证:方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
您最近一年使用:0次
2017-06-23更新
|
445次组卷
|
4卷引用:甘肃省天水市第一中学2016-2017学年高二下学期期末考试数学(理)试题
解题方法
3 . 已知函数
(
且
),
.
(1)函数
的图象恒过定点
,求
点坐标;
(2)若函数
的图象过点
,证明:方程
在
上有唯一解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b81a4ff90abd8dff9761c25cec7ef406.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/8ec1f76cada8418e05c14ad363604337.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4633de9335d15d7685bdecb007a3678c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316fcdd27cabf26bc1f9ab33cfdcbdff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bf22c3355e905e9df956d8279a8d7c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12990c8fb311e13845e5b433dcbcd417.png)
您最近一年使用:0次
名校
4 . 如果函数
在其定义域内存在实数
,使得
成立,则称函数
为“可拆分函数”.
(1)试判断函数
是否为“可拆分函数”?并说明理由;
(2)证明:函数
为“可拆分函数”;
(3)设函数
为“可拆分函数”,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48c3f77c4d399c6ce669406032c7b7f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)试判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ede389b43c78417912542746d91d00.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da4a93f87af7c854415faae61d6a3770.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c16e07631b59c477c2e56ddb75f10985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2017-02-16更新
|
1061次组卷
|
3卷引用:2016-2017学年湖南省益阳市高一上学期期末考试数学试卷
5 . 已知函数
(
)
(1)求
的最小值;
(2)若
,判断方程
在区间
内实数解的个数;
(3)证明:对任意给定的
,总存在正数
,使得当
时,恒有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7398d2c1c2d0c74388bf3c21a5dbfaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae2d87651574e905b382cfc0f021bbca.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e69866076dcff686a05e9e91e61e68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8385d694b4e303fb8145a8e046e9a349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18fe5e17c75d24e6e3e20775fd5063a1.png)
(3)证明:对任意给定的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e049c207b971f27e54bc61ebfa20d1e.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572680658870272/1572680665178112/STEM/7551fa505d3b4a4f82f7b7f2f49e2a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b282fbfe77a7957ad374897f1e254fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b90ce99457356607e80fb81a658e11.png)
您最近一年使用:0次
12-13高二下·江苏淮安·期中
解题方法
6 . 已知二次函数
.
(1)若
,试判断函数
零点个数;
(2)是否存在
,使
同时满足以下条件:
②对任意
,都有
,若存在,求出
的值,若不存在,请说明理由;
(3)若对任意
且
,
,试证明存在
,使
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331d5e308cd5469e0f28a8d75f79903f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a431537df789febf4bc45e3dc23cefaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3eb9b6fe8959ae9e71e857b6d6fed49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
①对任意,且
;
②对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab53f08a33f751167bfd382ce0ba8ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
(3)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee0258bd6d073c7ab70da6cac2c75954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f27822887caad20f3a075ca2fb74155c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d701701514d29d22d56e8a35f797d267.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86809499022d70bcc3e6b436116b3abb.png)
您最近一年使用:0次
7 . 已知函数
,其中
.
(1)求函数
的单调区间;
(2)证明:函数
只有一个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91c836dcd86f5bc9b232e09ade11f906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
13-14高三下·北京东城·阶段练习
名校
解题方法
8 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e39bad89c6df78a86b10a207b9cd6e.png)
(1)设
,
,证明:
在区间
内存在唯一的零点;
(2)设
,若对任意![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
,有
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e39bad89c6df78a86b10a207b9cd6e.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ece1cabeedc0da3de06bd8b7753cdf52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a97635d705da00aaaa083852233971a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b4ceef651d43872a078d48092417d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f4c4985f8a820372f1349f21f8dc31.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc2d3df37e73a8abea815f37dbb3fff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c100cb10e8e8654c12d2dd42215d6db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3c7653589b82e666ec6f80d305e441.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2016-12-02更新
|
1411次组卷
|
6卷引用:2014届北京市东城区高三3月质量调研文科数学试卷
(已下线)2014届北京市东城区高三3月质量调研文科数学试卷(已下线)2013-2014学年海南琼海嘉积中学高一上学期段考数学试卷2016届上海市七宝中学高三模拟理科数学试卷2016届上海市七宝中学高三模拟考试数学(理)试卷2016届上海市闵行区七宝中学高三下学期适应性考试(三模)(理)数学试题湖南省衡阳市第八中学2018-2019学年高一上学期12月九科联赛数学试题
9 . 已知函数
.
(1)求
的单调区间;
(2)若
,求证:函数
只有一个零点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8fc33cc11358a7671afd8ee851280fc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e4f1758fd4f661d451b4c32a88af46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a71bb8a80c75bcc1480263bc7ea3479.png)
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2016-12-04更新
|
321次组卷
|
2卷引用:2016届江西省上高县第二中学高三第七次月考理科数学试卷
10-11高二下·黑龙江·期末
10 . 已知函数
,其中
,
在
及
处取得极值,其中
.
(1)求证:
;
(2)求证:点
的中点
在曲线
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613dd40b05813eb1b688c890c6a9e978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655014aa633dbd4d41e7724e7a7d5364.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b794b9661e9fea21b9b9b677e8689b3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f7b16d65f1b2b8bea8cf4a83fde925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29506a6912c0dce7692a673600a30122.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be01087486cda61fd9e2f890c0028c1c.png)
(2)求证:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619afd3bbc81d29122afa1bddd07f9f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次