1 . 已知函数
,其中
.
(1)若
在区间
上为增函数,求
的取值范围;
(2)当
时,证明:
;
(3)当
时,试判断方程
是否有实数解,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9da321c9cd05849823e35b21e5c3c920.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980a8c4eb822aeb591ceacfe8a7aaa11.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4670151580327700b451c37d82b145ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d51eef5e4b9f8a150eea83add492aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3035055b25e06aead2f7e65e9328eccc.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d51eef5e4b9f8a150eea83add492aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/332a3a4707d14aab6d7bd81338af2dd0.png)
您最近一年使用:0次
名校
2 . 设函数
,
(
).
(1)当
时,若函数
与
的图象在
处有相同的切线,求
的值;
(2)当
时,若对任意
和任意
,总存在不相等的正实数
,使得
,求
的最小值;
(3)当
时,设函数
与
的图象交于![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc2313280bd5288132372867fd7e2cef.png)
两点.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64263fe2ca48e694c87496d61e63fb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab13954c17f2d8fcc2f62389ffe5fe39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0e9d1ad9561d693958756ee8398218.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a783088120d67cc98936081e80fb7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c49be52e64281122e9de94d94974d2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbf688ee44585d9d11be06435ab2de5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/164e752e2711294fdaa037aac4620b34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a813b77120fbf4dd6a87e393068040.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc2313280bd5288132372867fd7e2cef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab748045f620a425d340c3ee4b923986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f40692ad452858824dc511ff1edafa0f.png)
您最近一年使用:0次
2018-01-18更新
|
1602次组卷
|
4卷引用:辽宁省鞍山市第一中学2018-2019学年高二下学期期中数学(理)试题
名校
3 . 已知函数
,
.
(1)当
时,求函数
的图象在
处的切线方程;
(2)若函数
在定义域上为单调增函数.
①求
最大整数值;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/624ae3a8ee55c7e72953741a07db23a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8833b3e4dfecca27ceb587b9ab0e0095.png)
您最近一年使用:0次
2018-01-18更新
|
1433次组卷
|
7卷引用:【全国百强校】辽宁省鞍山一中2019届高三(上)期中数学(理科)试题
12-13高三上·重庆·阶段练习
4 . 已知函数![](https://img.xkw.com/dksih/QBM/2012/9/7/1571005402513408/1571005408223232/STEM/0529b9042dab447ea724373fcff6d820.png)
(1)若
,试确定函数
的单调区间;
(2)若
且对任意
,
恒成立,试确定实数
的取值范围;
(3)设函数
,求证:
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571005402513408/1571005408223232/STEM/0529b9042dab447ea724373fcff6d820.png)
(1)若
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571005402513408/1571005408223232/STEM/ddb16cb4287240849479ec4058cd150d.png)
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571005402513408/1571005408223232/STEM/c176818ae6f240a9aa6a25352d4dc75a.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571005402513408/1571005408223232/STEM/6ef0d3706c2d411db8bb4f11afdae5ca.png)
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571005402513408/1571005408223232/STEM/f4ef9c4f15504d4da67f528b62b489d0.png)
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571005402513408/1571005408223232/STEM/1395967b27174f0b978a93303959146f.png)
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571005402513408/1571005408223232/STEM/6c0aa96a85b249349fb8b5b7ca71f537.png)
(3)设函数
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571005402513408/1571005408223232/STEM/6057d24f56324a709c597e6997670c2d.png)
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571005402513408/1571005408223232/STEM/ba82dbb4d8474b748bb72dc4c3b45ead.png)
您最近一年使用:0次
名校
解题方法
5 . 设函数
.
(1)若函数
在
上单调递增,求
的取值范围;
(2)当
时,设函数
的最小值为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf316d7b9027a4b6827dd92615db727f.png)
(1)若函数
![](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/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0523c2e025e1b9060fd8eb09ac07a9.png)
您最近一年使用:0次
2016-12-04更新
|
312次组卷
|
4卷引用:2015-2016学年辽宁省鞍山一中高二下期中理科数学试卷
名校
6 . 已知函数
.
(1)求函数
的单调区间;
(2)已知
,
,(其中
是自然对数的底数),求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b26f55c7c29644dfe0277d3e2adf10.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18478e45096362e297359fe9345b073a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fd5a05aae4f1a7d8a8e32e80ca7263.png)
您最近一年使用:0次
2016-12-03更新
|
562次组卷
|
6卷引用:辽宁省沈阳市东北育才学校2018-2019学年高二下学期期中考试数学(理)试题
10-11高二下·辽宁·期中
7 . 已知函数
.
(1)若
,求证:函数
有且仅有
零点;
(2)若关于
的不等式
在
上恒成立,其中
是自然对数的底数,求实数
的取值范围.
参考数据:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f43a1fcaeb4a25ac37f7751427744c6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711b21672fd907c5c92fee1d649e7003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1392fd6b0ee7cc4a48fdab46fb51a619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd27b57c7dd68b9efc05e3d807015ea9.png)
您最近一年使用:0次
9-10高三·山东·阶段练习
名校
8 . 已知函数
在
处取得极值.
(Ⅰ)求函数
的解析式;
(Ⅱ)求证:对于区间
上任意两个自变量的值
,都有
;
(Ⅲ)若过点
可作曲线
的三条切线,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fccec26803c270b8e22f77099bb12a9d.png)
![](https://img.xkw.com/dksih/QBM/2010/9/30/1569846864535552/1569846869401600/STEM/a4cd0e5fc1754b7aa9daeee366a3ee39.png)
(Ⅰ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)求证:对于区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291d664e9ea8088c35bb6b0550f18675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://img.xkw.com/dksih/QBM/2010/9/30/1569846864535552/1569846869401600/STEM/597336be786d4ca6af652f84ec52a9e0.png)
(Ⅲ)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26820332294b112e27b8d7ffa4ae8631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2016-11-30更新
|
1366次组卷
|
7卷引用:2015届辽宁省大连市第二十高级中学高三上学期期中考试文科数学试卷
(已下线)2015届辽宁省大连市第二十高级中学高三上学期期中考试文科数学试卷辽宁省实验中学营口分校2019-2020学年下学期期中考试高二数学试题(已下线)2011届广东省深圳高级中学高三上学期期中考试数学理卷(已下线)2010-2011学年永春一中、培元中学、季延中学和石光华侨联中高三第一次统考数(已下线)2011—2012学年度黑龙江大庆实验中学高二上学期期末考试文科数学试卷河南省林州市第一中学2019-2020学年高二(实验班)4月月考数学试题(已下线)专题04 三次函数的图象和性质-1
解题方法
9 . 设函数
的图象在点
处的切线的斜 率为
,且函数
为偶函数.若函数
满足下列条件:
①
;
②对一切实数
,不等式
恒成立.
(1)求函数
的表达式;
(2)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c742f0d6beae58a26faaafe7c1f21e2.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1db176fdfd567783fb1437e37243e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/510825d073784709634a2e2e4b08b23c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2183ba00d69af06d9a950469b38cfe4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4977735f606aa34abc5e7587d1433bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2183ba00d69af06d9a950469b38cfe4b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8801d683f15d87a42dc1403cdcbbcc.png)
②对一切实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e2560a8795ce73a04496ddf68834381.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2183ba00d69af06d9a950469b38cfe4b.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c742f0d6beae58a26faaafe7c1f21e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d5fa85887816de29bcff4f143e3f0c.png)
您最近一年使用:0次
2016-12-03更新
|
1508次组卷
|
2卷引用:2016届辽宁省沈阳市二中高三上学期期中理科数学试卷
10-11高二下·辽宁锦州·期中
解题方法
10 . 已知函数
图象上一点
处的切线方程为
.
(1)求
的值;
(2)若方程
在
内有两个不等实根,求
的取值范围(其中
为自然对数的底数);
(3)令
,若
的图象与
轴交于
,
(其中
),
的中点为
,求证:
在
处的导数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3606d78a0de8fede3ff9909a23e6c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/622a3bcf97cdce271d1112ccab1d542b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68bb091a949c34e1a6113c1580a1237f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b7d58eeffa7673676dcf4f892090ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5920943d99f2044fef69d29e4aaeecb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab6b28c29a9e823cf1d6c764323d7e15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f5cd8f5dd05a04331f43a2ba55953b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f399b1f59ee66176b4038e91a3eb1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0002d5a96d9201fef8aaff81df5d35fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc3194ba080235c76aac4bdf2d87fc4.png)
您最近一年使用:0次