1 . 已知椭圆C1的方程为
,双曲线C2的左、右焦点分别为C1的左、右顶点,而C2的左、右顶点分别是C1的左、右焦点.
(1)求双曲线C2的方程;
(2)若直线l:
与双曲线C2恒有两个不同的交点A和B,且
(其中O为原点),求k的取值范围.
![](https://img.xkw.com/dksih/QBM/2015/12/29/1572400907665408/1572400913866752/STEM/0ec6ad9387c24c63a23322bc32c213d8.png)
(1)求双曲线C2的方程;
(2)若直线l:
![](https://img.xkw.com/dksih/QBM/2015/12/29/1572400907665408/1572400913866752/STEM/699395c085cb43bfa35e8745a462433d.png)
![](https://img.xkw.com/dksih/QBM/2015/12/29/1572400907665408/1572400913866752/STEM/44fa62518e95489aa6b921dc5233e545.png)
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4卷引用:2014-2015学年贵州省思南中学高二上学期期中文科数学试卷
2014-2015学年贵州省思南中学高二上学期期中文科数学试卷2014-2015学年贵州省思南中学高二上学期半期考试文科数学试卷(已下线)专题9.6 双曲线(讲)【文】-《2020年高考一轮复习讲练测》(已下线)专题9.7 抛物线(练)【文】-《2020年高考一轮复习讲练测》
2 . 若存在直线l与曲线
和曲线
都相切,则称曲线
和曲线
为“相关曲线”,有下列四个命
题:
①有且只有两条直线l使得曲线
和曲线
为“相关曲线”;
②曲线
和曲线
是“相关曲线”;
③当
时,曲线
和曲线
一定不是“相关曲线”;
④必存在正数
使得曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d15242e336576bf566b9ea589c7e60b.png)
和曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cf1bce17440e83c1b735d2954010a2a.png)
为“相关曲线”.
其中正确命题的个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
题:
①有且只有两条直线l使得曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a19b1407383b8f762615835c3f6d7c56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/719b769d563ebe850b49bd3d0aec4c3b.png)
②曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc8f344cec6958ad66e7c4b7ea9bf3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f41977c7686231b7c9b4faa3a550afd.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34de4e5af0abd04444f7259b54761191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39eebc6a2c5bab554e6fa43c15d60728.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e93e150ab786e0ed0e7096c22c89ffc.png)
④必存在正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d15242e336576bf566b9ea589c7e60b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31cd0ce93b5e667e626905ea50de73e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cf1bce17440e83c1b735d2954010a2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96e68c65f34d122de1187ab6ed2b3e8f.png)
其中正确命题的个数为
A.1 | B.2 | C.3 | D.4 |
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真题
名校
3 . 在直角坐标系
中,曲线C:y=
与直线
交与M,N两点,
(Ⅰ)当k=0时,分别求C在点M和N处的切线方程;
(Ⅱ)y轴上是否存在点P,使得当k变动时,总有∠OPM=∠OPN?说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de95471bb6c16acb4fd84d8315e6a637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b18e33b0b04763602f667cb91b17a.png)
(Ⅰ)当k=0时,分别求C在点M和N处的切线方程;
(Ⅱ)y轴上是否存在点P,使得当k变动时,总有∠OPM=∠OPN?说明理由.
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4 . 已知函数
,在其图像上任取一点
都满足方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60055e8eadb99f9b16747014d08d71ab.png)
①函数
一定具有奇偶性;
②函数
是单调函数;
③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bbaa692ed4b1f61228e35ea1f6a2861.png)
④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69b9588ae6ad5f5e9656553a283d21c.png)
以上说法正确的序号是___________________
![](https://img.xkw.com/dksih/QBM/2015/4/29/1572085716516864/1572085722472448/STEM/a93fb1a4c5564906b7989cea5f29af39.png?resizew=205)
![](https://img.xkw.com/dksih/QBM/2015/4/29/1572085716516864/1572085722472448/STEM/f1f8c997ba744e488ba8b1387bb401c3.png?resizew=51)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60055e8eadb99f9b16747014d08d71ab.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
②函数
![](https://img.xkw.com/dksih/QBM/2015/4/29/1572085716516864/1572085722472448/STEM/4cfa5d8434504dd4b7e311f25f03490f.png?resizew=129)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bbaa692ed4b1f61228e35ea1f6a2861.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69b9588ae6ad5f5e9656553a283d21c.png)
以上说法正确的序号是
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解题方法
5 . 过椭圆
的右焦点
作斜率
的直线交椭圆于
两点,且
与
共线.
(1)求椭圆的离心率;
(2)设
为椭圆上任意一点,且
,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02f266bd253738e315e84231235f0d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad7ce915e732d42fdab42890b716c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72baa67773cb6a8273d1142ba710b7ef.png)
(1)求椭圆的离心率;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f2dfb732e631f03cfe697bc615bcac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c918ca5d4e6d46ed130f85e5fa608d.png)
您最近一年使用:0次
6 . 双曲线
的右焦点
与抛物线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a7d646a77c3dd12b69fbd488b964ad.png)
的焦点重合,且在第一象限的交点为
,
垂直于
轴,则双曲线的离心率是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13b21086623c3b47236d6ea95affebb8.png)
![](https://img.xkw.com/dksih/QBM/2015/4/29/1572085716516864/1572085722374144/STEM/4c485bb8954b442d929534033e164302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a7d646a77c3dd12b69fbd488b964ad.png)
![](https://img.xkw.com/dksih/QBM/2015/4/29/1572085716516864/1572085722374144/STEM/c93f358391344c46aa674c961ecd016c.png)
![](https://img.xkw.com/dksih/QBM/2015/4/29/1572085716516864/1572085722374144/STEM/1d89509f23de4f5bad3496fc4aa3f7ae.png)
![](https://img.xkw.com/dksih/QBM/2015/4/29/1572085716516864/1572085722374144/STEM/86e3662b040f4980b1dcf17430512c34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 实数
满足
,则
的最小值是____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d10449bc77d692a7270e0f20a68cdf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab72e3bc9fcbe58e7695ddc1b8c3f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03407fac500509ec3a9dba22a86da9a7.png)
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8 . 如图,已知四棱锥
中,
平面
,
,
,且
,
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572053351874560/1572053357789184/STEM/5cf0800d26644de08a2708a795632ce8.png)
(1)求异面直线
与
所成角;
(2)求二面角
的平面角的余弦值.
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572053351874560/1572053357789184/STEM/c674d976b6e245a09b6d8a2ad8501173.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572053351874560/1572053357789184/STEM/3d04f79014214ecb8c885b1063dbf39d.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572053351874560/1572053357789184/STEM/2ba73fa8dbe94595a1de39bcd5c5da7b.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572053351874560/1572053357789184/STEM/945fc80a0c484179b19e35b77b2f6dae.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572053351874560/1572053357789184/STEM/31fa9f2679254669acaf50d249ef6d23.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572053351874560/1572053357789184/STEM/8ba37fc08322409ba116646881ee2a6a.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572053351874560/1572053357789184/STEM/d4be4fc310604cc2bf9f820bd84f38e7.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572053351874560/1572053357789184/STEM/883370cbdf89422bbf9349c3275c5715.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572053351874560/1572053357789184/STEM/8b46c0a453944aa1a68ae281e32dc56d.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572053351874560/1572053357789184/STEM/5cf0800d26644de08a2708a795632ce8.png)
(1)求异面直线
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572053351874560/1572053357789184/STEM/08446c0b001544fbaa541794ffc18cec.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572053351874560/1572053357789184/STEM/8fb3d6f749c046d59dba12cd1e7350cb.png)
(2)求二面角
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572053351874560/1572053357789184/STEM/df481183a090426b8ad6494add901305.png)
您最近一年使用:0次
9 . 已知平面上的动点
及两定点
、
,直线
、
的斜率分别为
、
,且
,设动点
的轨迹为曲线
.
(1)求曲线
的方程;
(2)过点
的直线与曲线
交于两点M、N,过点
作![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/c741f073bb6d4aac8917aea11e56975c.png)
轴,交曲线
于点
.求证:直线
过定点,并求出定点坐标.
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/7524eb4f27fa49f5ad64ff2ba5027cd9.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/d8d36ff74c9a4017affcc8e90c15821c.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/c2034337acd54468ad3446a17d9ed0d1.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/314b60ba46b245c8a48f0b28468ea01c.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/28e4a27dd54f4fa989c43adc27f74572.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/9debac9201ae4d0ab48e3e918f648c72.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/74f3f9f0f17e4c5d805dbd9f5b18e427.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/2f1936200f954881873bda3fcacd1377.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/f7db1a05d68d4498a92d415a11113151.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/e0b8eb62e6f746af94176834eb7d05dd.png)
(1)求曲线
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/e0b8eb62e6f746af94176834eb7d05dd.png)
(2)过点
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/9115f43cf5a84976b7b017d2e8cb1984.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/e0b8eb62e6f746af94176834eb7d05dd.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/9138a3881c1b40bcbe60da72e75daf18.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/c741f073bb6d4aac8917aea11e56975c.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/ce54cc2d00c144d58362cc136796c471.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/e0b8eb62e6f746af94176834eb7d05dd.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/d9761db4cf5448819304e08f1ce434c3.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990040977408/STEM/aa9da8b2376d4a19ba955a576947f480.png)
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10 . 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)
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2016-12-03更新
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5卷引用:2015-2016学年贵州花溪清华中学高一5.28周练数学卷
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