1 . 设
,若
在
上单调递增,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c295494ca7bea5ba5ab273b0ae028748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebaf506535e84083e7c0a6061865fef9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 定义在
上的函数
的导函数为
,且
恒成立,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd98620585852b7b76f3a3bfc924711.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-03-26更新
|
599次组卷
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4卷引用:黑龙江省大庆实验中学2022-2023学年高二上学期期末考试数学试题
名校
3 . 已知定义在(0,+∞)上的函数
满足
,其中
是函数
的导函数,若
,则实数m的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3347a337fa48a0ca315fd72d751123c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d18fceb83bf3b092366b68fc1bdea51.png)
A.(0,2022) | B.(2022,+∞) | C.(2023,+∞) | D.(2022,2023) |
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2022-05-19更新
|
1673次组卷
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4卷引用:黑龙江省哈尔滨师范大学附属中学2021-2022学年高二下学期期末数学试题
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解题方法
4 . 设椭圆
(
)的左焦点为F,O为坐标原点.过点F且斜率为
的直线与C的一个交点为Q(点Q在x轴上方),且
,则C的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e3740d67e9a7f5f257c0c63f6fba0b2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-12-03更新
|
2319次组卷
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8卷引用:黑龙江省大庆实验中学2021-2022学年高二上学期期末考试数学试题
黑龙江省大庆实验中学2021-2022学年高二上学期期末考试数学试题(已下线)专题10.2—圆锥曲线—椭圆2—2022届高三数学一轮复习精讲精练(已下线)解密14 椭圆方程(分层训练)-【高频考点解密】2022年高考数学二轮复习讲义+分层训练(新高考专用)江苏省南通市通州区2021-2022学年高二上学期期中数学试题(已下线)第05讲 椭圆 (精练)河北省沧州市任丘市第一中学2021-2022学年高二上学期第三次阶段考数学试题江西省宜春市铜鼓中学2022-2023学年高二下学期第一次段考数学试题(已下线)3.1.2椭圆的标准方程及性质的应用(第2课时)
名校
解题方法
5 . 已知函数
,则使得
成立的x的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0ce49f7feb5cdf835afab65b2429cfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3238002f7711b80d732ad0091f0c92e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-04-16更新
|
1047次组卷
|
2卷引用:黑龙江省鹤岗市第一中学2021-2022学年高二下学期期末数学试题
6 . 如图1,在梯形
中,
,
,
为
中点,
是
与
的交点,将
沿
翻折到图2中
的位置得到四棱锥
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/0e240b75-7753-4d4d-9cfc-a266e3c0496c.png?resizew=332)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed2a23c5569ecf4ab6ccf927a4ab46f.png)
(2)若
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0facf189b2a3153beb7b9e077d3b1146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78aafccd397e9c88a567abf4993d40f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3814287dbb60d478bffc5366f9928b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04e2f190be01e1ae0a21eb44e4dce83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db2b1c641b93caae9b7a82441e4ba70.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/0e240b75-7753-4d4d-9cfc-a266e3c0496c.png?resizew=332)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed2a23c5569ecf4ab6ccf927a4ab46f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/644c5e24619b11ca055c11c652484e55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a62b857b72f547bcbcc19fecccea480.png)
您最近一年使用:0次
2019-10-12更新
|
1837次组卷
|
7卷引用:黑龙江省绥化市望奎县第一中学2021-2022学年高二上学期期末数学试题
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7 . 已知函数
在
处的切线方程为
.
(1)求实数
的值;
(2)设
,若
,且
对任意的
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9087da83d78b737d7ac90458c171d5e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcc568fbc1480ba87cfdc2b6b3c71200.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8438358facefc6d98da6adc0e8b66196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99074f989e74d5ff306b4b7b7a379c1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ceaa7aae972fe112d0b1542ac567fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2017-04-11更新
|
1291次组卷
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7卷引用:黑龙江省大庆实验中学2021-2022学年高二实验一部下学期期末考试数学试题