名校
解题方法
1 . 下列命题为真命题的是( )
A.“![]() ![]() |
B.函数![]() ![]() |
C.函数![]() ![]() |
D.已知函数![]() ![]() ![]() ![]() |
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2023-12-30更新
|
674次组卷
|
3卷引用:重庆市开州区临江中学2023-2024学年高一上学期第二阶段性(12月期中)考试数学试题
名校
解题方法
2 . 已知椭圆
:
,A,B是左右顶点,P,Q在椭圆E上,满足
,则直线
恒过定点( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80b861ba40387cb2bcd04945f5a371a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e29ae9120ea4a05e76dd971403fca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 已知抛物线C:
上一点
,点
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e57b046c4061b2792c62ff9f333719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc1a1a0ac4675054f5428d6ea0dc584.png)
A.10 | B.8 | C.5 | D.4 |
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4 . 已知三棱锥
,E,F分别是
,
的中点,G在
上且满足:
,过E,F,G三点的平面与
相交于点H,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e4d8ceddd2ca64cf2f387fbd26de7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f29a9b753efabb502452e71757e7aa8c.png)
A.1 | B.2 | C.3 | D.4 |
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5 . 如图,线段
的两个端点
分别在
轴、
轴上滑动,
,点
是
上一点,且
,点
随线段
的运动而变化.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/20/f9a532ae-2c9a-4960-bfe4-81970ef164a3.png?resizew=168)
(1)求点
的轨迹方程
;
(2)动点
在曲线
外,且点
到曲线
的两条切线相互垂直,求证:点
在定圆上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf10573c5ea2b397b8721d1db7f5cc2f.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/31bac796866edc8cb23be5a3ed3cdc42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/20/f9a532ae-2c9a-4960-bfe4-81970ef164a3.png?resizew=168)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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6 . 已知集合
,集合
.
(1)当
时,求
;
(2)若“
”是“
”的必要不充分条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09aa1f3727ef38bb496101a49cf2571c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/010db36ce50b2112bbc7ab0f2f230f5e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-12-20更新
|
320次组卷
|
2卷引用:重庆市部分学校2023-2024学年高一上学期期中数学试题
名校
解题方法
7 . 已知双曲线
:
的左右焦点分别为
,
,
到其中一条渐近线的距离为1,过
且垂直于
轴的直线交双曲线于A,B,且
.
(1)求E的方程;
(2)过
的直线
交曲线E于M,N两点若
,求直线
的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/236f52e04ddbd7253f44b97c4756ef9c.png)
(1)求E的方程;
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e0b4cce429003557b051ea0fa2f7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e00ad067ceaf3a8c0452e5cd52a506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
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8 . 已知,如图(1)在五边形
中,
,
,
,
,
,现将
沿
折起得到图(2),且使得平面
平面
,
在线段
上.
(1)若
,求证:
平面
;
(2)若
,当
为何值时,平面
和平面
夹角的余弦值为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d4fbea8f0f97e0ce7747f207138a0ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd6a2b112facda441f4e34bf5c145fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a98c8e36238ad90378e724466fcb6023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6abed28fd7b66cc392d16edc057d834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5b4ea605cf0b98e428d071f6be6762.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5fc6ead6416492c231c320a5486f86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5f0cfc1049f84a04c81bd213afb8d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/14/abcad744-c01a-4855-8325-c0058b2e8253.png?resizew=254)
图(1) 图(2)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb3550d716617b15c763334baae4e5b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932a04304f2d4975955d4baabb2deeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1c9e6edb96baa228fea17262f1ba8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64e76a4c1e5934f51cdca2ffbc8313f.png)
您最近一年使用:0次
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解题方法
9 . 双曲线
:
的一条渐近线方程是
,则E的离心率是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
A.5 | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
2023-12-15更新
|
715次组卷
|
2卷引用:重庆市巴蜀中学2023-2024学年高二上学期期中考试数学试卷
名校
10 . 下列说法正确的是( )
A.![]() ![]() | B.![]() ![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2023-12-14更新
|
407次组卷
|
2卷引用:重庆市渝南田家炳中学校2023-2024学年高一上学期半期考试数学试题