名校
1 . 已知
,函数
.
(1)若
是增函数,求
的取值范围;
(2)证明:当
,且
时,存在三条直线
是曲线
的切线,也是曲线
的切线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea07afc90c5e15a1eaae1187e710b1c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f41c6b9fa72109ba69163a5c6b7874a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d72d23a933bc89bd056868419b1afb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8801df26d9cb76bc289b64a3a26902e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db192285632d1991b4ee7a003a52205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01796ee3c345e41396a5cc0cf1d7326c.png)
您最近一年使用:0次
2023-05-26更新
|
257次组卷
|
2卷引用:山西省省际名校2023届高三押题联考(三)数学试题
2 . 已知函数
.
(1)讨论函数
在
上的单调性;
(2)若
有两个极值点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211b46c734f7c5ad829b17b0928c2e08.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6d804ef44bfc64f824b0ccef71765e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a85ede5c9b7d3a5ea7db6789670f17b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
3 . 已知函数
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ .若
在
,
(
)处取得极值,记
,
,
,且
.线段
与曲线
有异于
,
的公共点,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0112b856f9d3d5e16a6c44b3c9cadf74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cedde86fd5b5e93c14ffd9190fc7d7a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971905ea129aec0ca7c325f60260c7e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd86badb20015aa65328fda1e43a117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45dddee525114c09ee0d1205aed6e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3b54e0dcdc081d45fb3df933cddc29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38cdb6455fa83593652e457d6a6c82c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a9e043d33067378e43fadc5f9d7a65a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
4 . 下列函数图象中,函数
的图象不可能的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b643e46b9a4af2163b334f55df626730.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2020-01-24更新
|
1661次组卷
|
9卷引用:山西省2021届高三上学期八校联考数学(理)试题
5 . 已知函数
,
.
(1)求
的单调区间;
(2)若
在
处取得极值,直线
与
的图象有三个不同的交点,求
的取值范围.若
的极大值为1,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82039cb8f157cdb540eb033f36571fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4d12362d4b8dd25813953e1c5a94b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
6 . 关于函数
,下列说法正确的是
(1)
是
的极大值点 ;(2)函数
有且只有1个零点;(3)存在正实数
,使得
恒成立 ;(4)对任意两个正实数
,且
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/574824d85f44d42246529ac135c0391c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377172ac328ddfc4ff2613c772941bb4.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e409849c921f4868c5a78abffb9f74bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085f3f7051d969af530a058862f678a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2037b0bad7c7a312bac1ac0653d9a491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/574824d85f44d42246529ac135c0391c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-05-28更新
|
936次组卷
|
2卷引用:山西省太原市第五中学2019届高三下学期阶段性检测(4月)数学(理)试题
7 . 已知函数
.
(1)若
,求实数
的取值范围;
(2)设
的极大值为
,极小值为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89ae9c590045b246110a80573c361ff3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c8a0f86edc5e8136f988bbebb4c5334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57584805a70c17d752bbd0def995accc.png)
您最近一年使用:0次
2019-04-29更新
|
1100次组卷
|
5卷引用:【市级联考】山西省晋城市2019届高三第二次模拟考试数学(文)(B卷)试题
名校
8 . 已知函数
与
的图像上存在关于原点对称的对称点,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc3c02a8835900761fe63b497195c60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3cdd33877589cad8aa93a6733d319f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019-04-01更新
|
1257次组卷
|
4卷引用:山西省实验中学2020届高三上学期第一次月考数学试题
9 . 已知函数
.
(1)当
时,求函数
在点
处的切线方程;
(2)对于任意的
,
的图象恒在
图象的上方,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38244616ee45ce9eb9a0df9555aacc0a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661e3f38c635165582128b423b80adb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b8d2eb7149c8c98cd8e035b3c64df11.png)
(2)对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d9c89d2cd1fb46b1e71ad10227c098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a042ec887b963ef8d69f5217703a938.png)
您最近一年使用:0次
名校
解题方法
10 . 定义在R上的函数
,当
时,
,则不等式
的解集是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e29b8df5a96f8f78ce8934fcb82927c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9405a365cac6ad4faeac60654dce3f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8b03af66c2b6d916b41321d7bb292f1.png)
您最近一年使用:0次
2018-11-30更新
|
1755次组卷
|
3卷引用:山西省孝义市2019-2020学年高二下学期3月阶段性考试数学(理)试题