已知函数
,g
.
(1)求
在点
处的切线方程;
(2)讨论
的单调性;
(3)当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f8301273e322867a8a70afbd6ecb54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb14416005b98c9017884b53c07b12bb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3829d4ac31608ee00d6f09994fad3b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7906c86b5445f1e96ae83294d2e2b53f.png)
16-17高三·重庆·阶段练习 查看更多[5]
重庆市第八中学2017届高三适应性月考卷(八)文科数学试卷江西省宜春市2022届高三上学期期末质量检测数学(理)试题(已下线)2022年新高考北京数学高考真题变式题13-15题广西桂林市第十九中学2021-2022学年高二下学期期中考试数学(理)试题(已下线)2022年新高考北京数学高考真题变式题19-21题
更新时间:2022-02-15 15:44:29
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相似题推荐
解答题-证明题
|
较难
(0.4)
解题方法
【推荐1】已知函数
.
(1)求证:函数
在点
处的切线恒过定点,并求出定点坐标;
(2)若
在区间
上恒成立,求
的取值范围;
(3)当
时,求证:在区间
上,满足
恒成立的函数
有无穷多个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbece897696948bc5081d52361e2f50.png)
(1)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86209a88158e6e388b59b9a909da3f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e1c9c97de9198d47306216e9961b80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51947e18ac12b186aa3c09e62c036af9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e1c9c97de9198d47306216e9961b80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d28d4330fd2169fbfbbac5f5a95c074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
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名校
解题方法
【推荐2】已知函数
.
(1)若
为奇函数,求此时
在点
处的切线方程;
(2)设函数
,且存在
分别为
的极大值点和极小值点.
(i)求函数
的极值;
(ii)若
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/261bb2d645a7a1ece7b438b2b40bb298.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3832d863e6cefdfe45cff4319e1fbdb.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e2c94673cc73b1fb38ded9b6d7ffbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
(i)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
(ii)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b46365e8f76813dfbcdb0f190b8803.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f892bc10058b0d6b8b707549d5c8bb65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解答题-问答题
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较难
(0.4)
【推荐3】已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)如果函数
在
上单调递减,求
的取值范围;
(3)当
时,讨论函数
零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086231e1e7df3d1113c592364557b614.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)如果函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2067a6792ec6f17f8a34d9d49366701a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
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解答题-问答题
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解题方法
【推荐1】在平面直角坐标系
中,已知椭圆
的离心率为
,且过点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/9/9b6f38f4-2ba1-4be3-a568-c0c93f9c5340.png?resizew=222)
(1)求椭圆C的方程;
(2)如图所示,动直线
交椭圆C于A,B两点,交y轴于点M.点N是M关于O的对称点,
的半径为
.设D为
的中点,
与
分别相切于点E,F,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/182c81fb1c5e6d1a57a5f34a31ee69a9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/9/9b6f38f4-2ba1-4be3-a568-c0c93f9c5340.png?resizew=222)
(1)求椭圆C的方程;
(2)如图所示,动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327a8132cb929667c033a3c20bd9c67c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c22f4b5c09a56bd63d8378365fbdbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de246abb87d25da6150e81d4ce1d0a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c818110255bdad691f61be6461a6fd73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c22f4b5c09a56bd63d8378365fbdbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c962fe4f47732b8e6e83d17ff2b9af13.png)
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【推荐2】已知函数
.
(Ⅰ)求函数
的单调减区间;
(Ⅱ)记函数
的图象为曲线
.设点
是曲线
上的不同两点.如果在曲线
上存在点
,使得:①
;②曲线
在点
处的切线平行于直线
,则称函数
存在“中值和谐切线”.当
时,函数
是否存在“中值和谐切线”,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ead297722965b0b8509523ed3bd8adc.png)
(Ⅰ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4133958c09fdd82cda8838c9cf46ccda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4daf40bad1cc89311930cce356672354.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3511cdc6a9b56bc1d9415d3d94ef0f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c45b5bbd5fb7706c6f7c24df34fc145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
解答题-问答题
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较难
(0.4)
解题方法
【推荐3】已知函数
.
(1)讨论
的单调性;
(2)设
,若当
时,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62fc8d982a65d7832ff0723401ffeadc.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92a4d672885902404c7385a3ff442f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbf04368c8df5f10217b7af98ea52b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
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名校
解题方法
【推荐1】已知函数
(其中
为自然对数的底数),
.
(1)讨论函数
的单调性;
(2)若对任意的
都有不等式
成立,求实数a的值.
(3)设
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeea9bb195a844feb2f1806db8259604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cab0b2c5b769a5b8279edae2275e714.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecfc024789d73d94db9c9c4714eaab01.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97769855336d73371930df1f187875e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229a97e1defe5a06a8acec77c6b31692.png)
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解题方法
【推荐2】已知函数
.
(1)过点
(e是自然对数的底数)作函数
图象的切线l,求直线l的方程;
(2)求函数
在区间
(
)上的最大值;
(3)若
,且
对任意
恒成立,求k的最大值.(参考数据:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aab50956e0fca0f9a3ec9ae55858b7a0.png)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ca7c2a23c76122f6f2abbdb778141a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91b3592e2dce9cc8639ca9d30e12bf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a173784888adf2946382fa093ba53a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4aa114d1e79202d3a29ab518db1b0e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.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
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较难
(0.4)
名校
【推荐3】已知函数
,
.
(1)讨论函数
的单调性;
(2)证明:
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26eb388bc552f57ea5bf43f699f26773.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a26bf46bc53d18b0d55d394c1c4dd30.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeea9da92f3fd2a1c04433d1b6969f06.png)
您最近一年使用:0次
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较难
(0.4)
【推荐1】已知
时,函数
的图象恒在直线
的上方.
(1)求证:当
时.
;
(2)求函数
在
上的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb37ae6ada1e908f4ead466ce03b3a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb35baa6699789980bfffab1fb177259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0985b973395bcd371cd1e26d3fcd1c36.png)
(1)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb37ae6ada1e908f4ead466ce03b3a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0427c9bb2f25fbd79c2e37e0b44e2ecb.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32527800720dee6e69faa12da34d174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32753e46d113c0441662a1bab558925.png)
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【推荐2】已知函数
(
为自然对数的底数).
(1)求函数
的最小值;
(2)若
对任意的
恒成立,求实数
的值;
(3)在(2)的条件下,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46d0e882fb40853af9d1b3d1998b58a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4247858cd51e815132020b7cc6ae9853.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638a1127ac6277a203e7a8c1b035d67c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0be07495dbc744e1ecabac66f748218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)在(2)的条件下,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b5ebab2209ee6d063ef42a6b916ccf.png)
您最近一年使用:0次