11-12高三上·福建·阶段练习
1 . 已知函数:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e18f72df2acd6f3e19fe6260617595f.png)
(1)讨论函数
的单调性;
(2)若函数
的图像在点
处的切线的倾斜角为
,问:
在什么范围取值时,函数
在区间
上总存在极值?
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e18f72df2acd6f3e19fe6260617595f.png)
(1)讨论函数
![](https://img.xkw.com/dksih/QBM/2011/12/14/1570612347838464/1570612353523712/STEM/d0fce710afa245ffa4e5129cecb215a8.png?resizew=34)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/150e8e4ca6aa729a72a6a17c36b8ebfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f18507a11438684e4f6836a8e6021c1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be3ad3dd6803d92df6ff8a80cd35095.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c3434c372ecb36a447efb19744ab410.png)
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解题方法
2 . 已知函数
,
,
.
(1)若函数
在
上单调递增,求
的取值范围;
(2)若关于
的方程
有两个实根
,
(i)求
的范围;
(ii)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff6838d84b68c6f0d3b93b196d9b08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4784338464ebd7b72876659bcb2df179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/020d756192f4dc7939f3b73891ced2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d51992c05a557cf6058664f1f8961e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c34a0d539a1a149edfd5b6c2e3dfb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(ii)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1ed1edfb1823ff324796448f20bd690.png)
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3 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f81694c250c0107d608508c094f27f.png)
(1)当函数
有3个零点,求实数
的取值范围;
(2)当
取条件(1)下的取值时,设函数
有3个零点
,
,
,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f81694c250c0107d608508c094f27f.png)
(1)当函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a42945a6ff4452dfbe550e0f28c82f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcefa1eadaa807e3fe6c61a2f8d2dea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5646305daf3f3a5c135d45dbe51aff69.png)
您最近一年使用:0次
解题方法
4 . 已知函数
,其中
为实数,
为自然对数底数,
.
(1)已知函数
,
,求实数
取值的集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
(2)已知函数
有两个不同极值点
、
.
①求实数
的取值范围![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1203188d4eaea4984f479bd289a48a48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9003a22f3bfbdc2dba7869c0f7d54c8c.png)
(1)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6944b7c8a4a4f049389742729e6e854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
①求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c013dd461282a9677073747d55f685.png)
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2023-02-14更新
|
809次组卷
|
3卷引用:湖南省四大名校名师团队2023届高三普通高校招生统一考试数学模拟冲刺卷(一)
2022高三·全国·专题练习
名校
5 . 已知函数
,其中
,
为自然对数的底数.
(1)当
时,对
.
①证明:
;
②若
恒成立,求实数
的范围;
(2)若函数
在
上存在极值,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1604d09f3a06f97537ea339a87bffc28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7364911f4597bfe996da15bf929c7fe.png)
①证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad473fe3395dc1273eccbda9355f1b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f00f2f6ab162f9333ec55db195d663b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
6 . 已知.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58196b9e63ec00aa1119052b6de6ae12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f161c2a3717f1b6c62d0d7dae0b606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4753d6d46da2936d6e0d963b94efc02c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3abd318e7b51e3b16cd57b636e3b429.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ca77a28ce8ce797a1b1bb3c465dcd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a458f4716b7fb99418d762909eecab11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9405361d7be3c9e4d462a4e955d8fe3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7c0309456de2cd6420ece4fbc5eeddb.png)
您最近一年使用:0次
名校
7 . 设函数
,
,
.
(1)求函数
的单调区间和极值;
(2)若关于
的不等式
的解集中有且只有两个整数,求实数
的取值范围;
(3)方程
在的实根为
,令
,若存在
,使得
,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427c0e1338814bb5431c3ab7e2d3b9d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8025bceccbc5be142baecfaacfb44626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c0769a5f9d25f1c93c4d37b0e0af9e2.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eeb41f0d781816876cc3264a0fc79b3.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/633ef53a95a7cf276cb6c9021d4ffcbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f76230e463a5ed01ea817c66d194807d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41332c99ca8b3c902f94759e1be10188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9459b828d91efd08ca3b18e5518c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e2551c314c6ea951fca591bf87a6f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0c66a634157c181156a0ead54d9fc0.png)
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2022-05-03更新
|
882次组卷
|
3卷引用:天津市滨海新区塘沽第一中学2022届高三下学期高考适应性测试数学试题
名校
8 . 已知函数
,
,其中
.
(1)讨论函数
的单调性,并求不等式
的解集;
(2)若
,证明:当
时,
;
(3)用
表示
,
中的最大值,设函数
,若
在
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8803570a0c1419daf71e8e8002c7f0a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10208c3bcf8a14e5ec1868b74442813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6a8fa700e08120d48f64b0821054ee.png)
(3)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1bfb9487f824ff9fd2a1a281f8d62f0.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/e14d82de4864f4cc2f74249ecf5cbffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bdf04f070224d193aaa2d0b13b96d48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-05-11更新
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2177次组卷
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9卷引用:福建省南平市2021届高三二模数学试题
福建省南平市2021届高三二模数学试题江苏省常州市新桥高级中学2021届高三下学期三模数学试题(已下线)专题4.19—导数大题(与三角函数相结合的问题1)-2022届高三数学一轮复习精讲精练广东省佛山市顺德区第一中学2022届高三上学期阶段性考试一(8月)数学试题(已下线)第20讲 不等式恒成立之max,min问题-突破2022年新高考数学导数压轴解答题精选精练(已下线)第24讲 最值函数的零点问题-突破2022年新高考数学导数压轴解答题精选精练(已下线)第15讲 max函数与min函数问题-2022年新高考数学二轮专题突破精练(已下线)NO.4 练悟专区——解答题突破练-2022年高考数学二轮复习讲练测(新教材·新高考地区专用)(已下线)专题07 不等式恒成立问题-1
9 . 已知函数
.
(Ⅰ)若
,求曲线
在
处的切线方程;
(Ⅱ)若
,求证:
;
(Ⅲ)当
时,若关于
的不等式
的解集为
,且
,
,求
的取值范围(用
表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f326438496a2f610cbc056379f31e103.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c6b6a11760d0724b0b60e55970e229.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5dddfd05cb070fe3365dab210b065d.png)
(Ⅲ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6946166bdbd7c0e82a08beda41edb850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351629c193354cdcf202133052e45028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83506ab732ee827e875c2b325062114c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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10 . 已知二次函数
.
(1)当
时,求不等式
的解集;
(2)若不等式
对
恒成立,求
的取值范围.
![](https://img.xkw.com/dksih/QBM/2015/1/5/1571944605982720/1571944611840000/STEM/a674985120ac4495a814e9fd83a643f1.png)
(1)当
![](https://img.xkw.com/dksih/QBM/2015/1/5/1571944605982720/1571944611840000/STEM/34a22da52d4b4950bd433fe59c2e5ba4.png)
![](https://img.xkw.com/dksih/QBM/2015/1/5/1571944605982720/1571944611840000/STEM/da13bcd52d1c45e8b07734c3c6454ad5.png)
(2)若不等式
![](https://img.xkw.com/dksih/QBM/2015/1/5/1571944605982720/1571944611840000/STEM/df577d12736445a9acbe73f8674f6687.png)
![](https://img.xkw.com/dksih/QBM/2015/1/5/1571944605982720/1571944611840000/STEM/6da5e1cfa8094a269a89459846f61910.png)
![](https://img.xkw.com/dksih/QBM/2015/1/5/1571944605982720/1571944611840000/STEM/95cd85f99163483dbac78e125eb73709.png)
您最近一年使用:0次