名校
1 . 已知函数
,
.
(Ⅰ)若
是函数
的一个极值点,求实数
的值及
在
内的最小值;
(Ⅱ)当
时,求证:函数
存在唯一的极小值点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21279945443f895245eb78875e19702d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c429809720172e99f9dfad9878b8132c.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0408b9502dcc197dcf528337ef0b617b.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b849834f562c430d97ed4a4df5d0827b.png)
您最近一年使用:0次
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2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fcd2c2f36588e127117897b79b7a1f1.png)
(1)当
时,求函数
的单调区间;
(2)若函数
的值域为
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fcd2c2f36588e127117897b79b7a1f1.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df6bc6bf086ae0da5fbbde88c93d0dee.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0653a41020f6f5f2576456d7a020c62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
您最近一年使用:0次
2019-06-21更新
|
453次组卷
|
3卷引用:黑龙江省双鸭山市第一中学2018-2019学年高二下学期期末考试数学(理)试题
名校
3 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5950244c907c9858427527e241b2a0f0.png)
(1)讨论函数
的单调性;
(2)若
的最大值为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5950244c907c9858427527e241b2a0f0.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6038862a07168963ef7495cbfc021a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2019-06-12更新
|
68次组卷
|
2卷引用:【全国百强校】黑龙江省哈尔滨市第三中学校2018-2019学年高二下学期期中考试数学(理)试题
名校
4 . 已知函数
.
(Ⅰ)若
是函数
的一个极值点,求
的单调递减区间;
(Ⅱ)在(Ⅰ)的条件下证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a056d754760ec99797ef96c80fac1dc.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)在(Ⅰ)的条件下证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/499ef34a15a145245a4b5dbc841b5a7f.png)
您最近一年使用:0次
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5 . 已知函数
,其中
.
(1)讨论
的单调性;
(2)当
时,证明:
;
(3)试比较
与
,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0d39f7bb37d497ed2282edb953479b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980a8c4eb822aeb591ceacfe8a7aaa11.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302337058242c7b78e3eb4ac7210b7ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/012bf5b6f499ba3b4905c8deb2cfdb64.png)
(3)试比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a10e5e5d7ca06ab9a2396fcd9ca6169b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b893939e1953383da48b53adf3268313.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac67e4017b7cd44bc433501f72bbe2d.png)
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2019-04-29更新
|
1510次组卷
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7卷引用:黑龙江省七台河市第一中学2019-2020学年高二下学期期末考试数学试题
名校
6 . 已知函数
.
(Ⅰ)当
时,求
的单调区间;
(Ⅱ)当
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/553437bb8b59d0035ab68a0aa6ecfcd4.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc9ede2e55724383dd1093fc7fcdb59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019-04-24更新
|
623次组卷
|
2卷引用:【市级联考】黑龙江省大庆市2019届高三第三次教学质量检测数学(文)试题
名校
7 . 已知
,且不等式
对任意的
恒成立.
(Ⅰ) 求
与
的关系;
(Ⅱ) 若数列
满足:
,
,
为数列
的前
项和.求证:
;
(Ⅲ) 若在数列
中,
,
为数列
的前
项和.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf04fe8895c10624636a815d3d752975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce062824a1b0d0d648a99eb14827794b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
(Ⅰ) 求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(Ⅱ) 若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5cb4afe1da61f358de0e708c8807ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f16edccebb39f31064e209b7ab127c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/983270a1aac5d30143c5f272dbc2fa1a.png)
(Ⅲ) 若在数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e71cc3b2b1a884e54bc1d0b51508992a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c3a410c064c1c2a45e33e468ad0ad68.png)
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名校
8 . 已知函数
.
(1)若
在
上恒成立,求实数
的取值范围;
(2)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf07dcef142d28e166e8cf6b18f28b6.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc26459969787b038c8eaa33f0236c2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb49dbba01c4ff5f686ffc8828351b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bf07dcef142d28e166e8cf6b18f28b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/947a66bfe244036da12f87567097092d.png)
您最近一年使用:0次
2019-04-13更新
|
1059次组卷
|
2卷引用:【市级联考】黑龙江省齐齐哈尔市2019届高三第二次模拟考试数学(理)试题
名校
9 . 已知函数
(1)讨论函数
的单调性.
(2)若函数
有两个极值点
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86d92c8913d5ae7363cbc039e78eb9f.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d121bbe777bbe26ff3618c1ed35091a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc2a39beea5adf5d07aea0424ca7a64f.png)
您最近一年使用:0次
2019-03-11更新
|
816次组卷
|
2卷引用:【全国百强校】黑龙江省哈尔滨市第三中学2018-2019学年高二下学期第一次阶段性测试数学(文)试题
名校
10 . 已知函数
,
.
(1)当
时,求函数
图象在点
处的切线方程:
(2)若函数
有两个极值点
,
,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efbb60bede2b2dceddf1c2268d2036a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/248a0e7a6d6d6762b3b2f19e596ad7b7.png)
您最近一年使用:0次
2019-03-03更新
|
1453次组卷
|
10卷引用:黑龙江省大庆铁人中学2020-2021学年高二下学期期末考试数学(文)试题
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