设函数
,其中a>0,曲线
在点P(0,
)处的切线方程为y=1
(Ⅰ)确定b、c的值
(Ⅱ)设曲线
在点(
)及(
)处的切线都过点(0,2)证明:当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aadf62ac6b90ed27b447490ae209f11.png)
(Ⅲ)若过点(0,2)可作曲线
的三条不同切线,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb780a2451c73c347f94e2f420e1463a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6132bb87f382587e65d3cd52c703ebfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac91b31cb0f20043bd76522d6fc77c6b.png)
(Ⅰ)确定b、c的值
(Ⅱ)设曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6132bb87f382587e65d3cd52c703ebfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29406f809aed1001828420585bfe6fff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7faf81cb31eba08756fc9759aae520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49dbf8ddf50466312114e673498a4e70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aadf62ac6b90ed27b447490ae209f11.png)
(Ⅲ)若过点(0,2)可作曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6132bb87f382587e65d3cd52c703ebfc.png)
2010·湖北·高考真题 查看更多[7]
2010年普通高等学校招生全国统一考试(湖北卷)数学(文科)(已下线)2010年高考试题分项版文科数学之专题十三 导数(已下线)2010年高考试题分项版文科数学之专题十五 推理与证明(已下线)2012届湖北省鄂州市第二中学高三期中考试文科数学高二数学人教A版(2019) 选择性必修第二册 第五章 导数及其应用 单元测试(已下线)第02讲 一元函数的导数及其应用(二)(练)(已下线)考点15 导数的几何意义及其应用 2024届高考数学考点总动员【练】
更新时间:2019-01-30 18:14:09
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适中
(0.65)
【推荐1】已知函数
(
,且
)在
处取得极值
.
(1)讨论函数
的单调性;
(2)判断是否存在实数
使得函数
的图像与直线
相切,若存在,求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acae4ae6e8b9b95e909637817d5bd17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c6d3c99b7004603ba9ea9c341b8b3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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适中
(0.65)
名校
【推荐2】已知函数
,直线
与函数
的图像都相切于点(1,0).
(1)求直线
的方程及函数
的解析式;
(2)若
(其中
是
的导函数),求函数
的极大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0876ef9ec6d94188eca5d1345a8cbc1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf6aefea0eaf6a1b4a9803c91dd72ff.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e6acc776a78fc3347a8a881574bfc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9d22bb946774b45d4671e5eabe3b47f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74314814cdc6fb803abb4692458af131.png)
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【推荐1】如图,过椭圆
的右焦点
作直线交椭圆于
,
两点.
![](https://img.xkw.com/dksih/QBM/2017/3/31/1655777117626368/1656185985638400/STEM/278d2fa0-640f-47d7-95de-3edc901b8829.png?resizew=171)
(1)当
,
变化时,在
轴上求点
,使得
;
(2)当直线
交椭圆
的另一交点为
,连接
并延长交椭圆于点
,当四边形
的面积取得最大值时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caeb11677994ba487096958b1ad82ea1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/2017/3/31/1655777117626368/1656185985638400/STEM/278d2fa0-640f-47d7-95de-3edc901b8829.png?resizew=171)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b19d65ee9a5eb582ed598baa5ce19bce.png)
(2)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf25e032b5599ac49383de06e776365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐2】已知函数
,
.
(1)当
时,求函数
在区间
上的最大值;
(2)当
时,求函数
的极值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51582b59f60a26eceee3aed9b7b19d3.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/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/499a8449e8bb253065463c23f3ff5860.png)
(2)当
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
,其中
.讨论
的极值点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1901fe99f54466a98c75f90fe8936583.png)
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![](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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适中
(0.65)
名校
【推荐2】函数
.
(1)若函数
有2个零点,求实数a的取值范围;
(2)若
在
上的值域为
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c89c3e67c20ad0458e3a8071e8fb76b3.png)
(1)若函数
![](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/7754cc9374c8193dadb6875fb8a3fefb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/719f1d554df54b093ee27afa1b781468.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐3】设函数
.
(1)求函数
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(2)若
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,
,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0930a87227acb1754e1f15e13d8e1198.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
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您最近一年使用:0次