名校
解题方法
1 . 如图,
,
分别是直径
的半圆
上的点,且满足
,
为等边三角形,且与半圆
所成二面角的大小为
,
为
的中点.
平面
;
(2)在弧
上是否存在一点
,使得直线
与平面
所成角的正弦值为
?若存在,求出点
到平面
的距离;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e925392d0bf25a1a5c698ec1d8adea4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/063510e3c1fb6a7ccc3b8e3e3c7d660e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)在弧
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ab8a10e675354fa0c6e7da3d06b999d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93919b1b42b96052bb1ef51d2c6e90c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ab8a10e675354fa0c6e7da3d06b999d.png)
您最近一年使用:0次
2024-03-20更新
|
667次组卷
|
4卷引用:广西百色市平果市铝城中学2023-2024学年高二下学期4月月考测试数学试卷
名校
解题方法
2 . 如图,在下列各正方体中,
为正方体的一条体对角线,
、
分别为所在棱的中点,则满足
的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b33a3f384acb53b5a21521a77ac0b1f7.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-03-03更新
|
303次组卷
|
4卷引用:广西壮族自治区百色市德保县德保高中2023-2024学年高二下学期3月月考数学试题
解题方法
3 . 设双曲线
(
)的虚轴长为2,焦距为
,则其渐近线方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b91d650c2fc1a741fabdb333b09aeb6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
4 . 如图是一座抛物线型拱桥,当桥洞内水面宽
时,拱顶距离水面
,当水面上升
后,桥洞内水面宽为________
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb1e0bd4fe8afb14b572852121cef83d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7854968bbf6576a1fd9926ee0d4d63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71a41641aa0d0e45a3c03d3d2c1196b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/59f4b5a0-7bff-4f2b-9684-99e6b50524b6.png?resizew=185)
您最近一年使用:0次
解题方法
5 . 如图,在棱长为2的正方体
中,
为
内的任意一点(含边界),则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/6701e148-7d5c-4f92-b9ad-cc4599b43a70.png?resizew=165)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de60f6ffd5ab327d4cfe32d26d95da70.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/6701e148-7d5c-4f92-b9ad-cc4599b43a70.png?resizew=165)
A.三棱锥![]() |
B.点![]() ![]() ![]() |
C.向量![]() ![]() ![]() |
D.若线段![]() ![]() ![]() ![]() |
您最近一年使用:0次
解题方法
6 . 下列说法正确的是( )
A.椭圆![]() |
B.抛物线![]() ![]() |
C.等轴双曲线的离心率是![]() |
D.![]() |
您最近一年使用:0次
名校
解题方法
7 . 已知椭圆的左右焦点分别为
,
为椭圆上的点,若
,
,则椭圆的离心率等于
您最近一年使用:0次
2024-01-30更新
|
337次组卷
|
2卷引用:广西壮族自治区百色市德保县德保高中2023-2024学年高二下学期3月月考数学试题
8 . 已知椭圆
的右焦点为
,短轴长为2.过点
且不平行于坐标轴的直线
与椭圆
交于
两点,线段
的中点为
.
(1)求椭圆
的方程;
(2)证明:直线
的斜率与直线
的斜率的乘积为定值;
(3)延长线段
与椭圆
交于点
,若四边形
为平行四边形,求此时直线
的斜率及四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)延长线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.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/14e902eb263971b466d0fcd91c56b453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e902eb263971b466d0fcd91c56b453.png)
您最近一年使用:0次
2024-01-17更新
|
310次组卷
|
2卷引用:广西百色市平果市铝城中学2023-2024学年高二下学期3月份测试数学试卷
2024高三·全国·专题练习
9 . 下面是某同学在学段总结中对圆锥曲线切线问题的总结和探索,现邀请你一起合作学习,请你思考后,将答案补充完整.
(1)圆
上点
处的切线方程为 ?请说明理由.
(2)椭圆
上一点
处的切线方程为 ?
(3)
是椭圆
外一点,过点
作椭圆的两条切线,切点分别为A,B,如图,则直线
的方程是 ?这是因为在
,
两点处,椭圆
的切线方程为
和
.两切线都过
点,所以得到了
和
,由这两个“同构方程”得到了直线
的方程;
,
斜率都存在时,设它们方程的统一表达式为
,由
,得
,化简得
,得
.若
,则由这个方程可知
点一定在一个圆上,这个圆的方程为 ?
(1)圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd432589cb00c29cac1806288e99ed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22962a2ad892cb6b14ab039a06e8cdc6.png)
(2)椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21872d8f6a518e0a2993ccf7a795ed2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc19b2381300bcb0920fb86b2976098a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac5cb33767f3bea3a7d99f995e48755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ac254ffeb189342bf397010c97f9167.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b401183b99948a51c9e005c85951a823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43091ed6e1c36fbfd8e8799ce12a5973.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb05438f51bde5d82b255acf92987b74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c79938f3fa4f4b641f3b404cf86647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f0d24f0e0d63565b7a0199829a311b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c2b0eb6b8e515c616b5cdd4c37fefc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d88ef4fb1efa18408df2f47ed3f7ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2023-11-13更新
|
947次组卷
|
5卷引用:广西百色市平果市铝城中学2023-2024学年高二下学期4月月考测试数学试卷
广西百色市平果市铝城中学2023-2024学年高二下学期4月月考测试数学试卷(已下线)专题11椭圆(3个知识点7个拓展2个突破7种题型2个易错点)-【倍速学习法】2023-2024学年高二数学核心知识点与常见题型通关讲解练(人教A版2019选修第一册)(已下线)重难点突破14 阿基米德三角形 (七大题型)(已下线)考点20 常用的二级结论的应用 2024届高考数学考点总动员(已下线)新题型01 新高考新结构二十一大考点汇总-3
解题方法
10 . 已知双曲线的右焦点为
,实轴长为
.
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2023-12-27更新
|
700次组卷
|
4卷引用:广西壮族自治区百色市平果市铝城中学2023-2024学年高二下学期开学考试数学试卷