1 . 设直线
与抛物线
相交于
两点,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8902c263db5f913c55bc9a363fc3e4dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b072ff6d1b83232bebd7d4709ffba4ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5064c1ee44b4f0ce61dbaedbffeedcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
解题方法
2 . 如图,上下底面都为正三角形的三棱台
中,
平面
,且
.
(1)求三棱台
的体积;
(2)设
为线段
上的动点(包括端点),求直线
与平面
所成角的正弦值的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a9ad711b25c36dae0c2a2cedff9954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8bfe2553e852df73185d017c0a62fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8b56cd379edd9e5738c9e22be2073c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4fcf607b0710d12aaabd17fd053d83.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/29d3b253-89bd-4a04-9641-2927d03b8c7a.png?resizew=147)
(1)求三棱台
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a9ad711b25c36dae0c2a2cedff9954.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/456175ea34492f0bc025aaab668fa659.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
您最近一年使用:0次
解题方法
3 . 已知双曲线
的左、右焦点分别为
,直线
上存在一点
.使得直线
垂直平分线段
,点
为垂足,且
.
(1)求双曲线
的标准方程;
(2)若直线
与双曲线
交于
两点,
为坐标原点,探究
是否有最小值,若有,求出最小值,若没有,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f643bb82b6a6eba7c44658e8b4163d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0980c1784effa498fc1415dd45e64a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c6f8a0db9d6a46cfcc28c666fdab897.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8ad9e94d07405a6be585f81a0d623b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933c95f7ece99b5d30072f2afc1dafbf.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9535ee842ae73f05e62c1e8b20fc8b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a711bf44ed64556c72fbb0e7f42c27f.png)
您最近一年使用:0次
解题方法
4 . 如图,把正方形纸片ACDB沿对角线BC折成直二面角,E,F,G,H分别为BD,BA,AC,CD的中点,O是原正方形ABCD的中心,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/7/ffae5813-08ee-4dce-b5e5-d69a9b382500.png?resizew=158)
(1)求证:.E,F,G,H共面.
(2)求EG的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ea52361458ce2e49ed0fe99d8e6c02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/7/ffae5813-08ee-4dce-b5e5-d69a9b382500.png?resizew=158)
(1)求证:.E,F,G,H共面.
(2)求EG的长.
您最近一年使用:0次
解题方法
5 . 已知
的三个顶点分别是
.
(1)求线段AB的垂直平分线所在的直线方程.
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1763a7fd6567c6c8a4d3ededa27b65cc.png)
(1)求线段AB的垂直平分线所在的直线方程.
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
6 . 已知空间三点
,
,
,设
,
,
.
(1)判断
的形状;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d5632f8390c6a049e74273f82c4ea6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b446b2ae2ea36202e018afe8d11a6b96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6494a66af58db82efaedbaac43544135.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de5b6afcd86c9a6ee0ec615a27dd506e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7894a1a495d4fa4d7959d94a97dabc55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffd765098995fcbcccbd30301202368.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147d813d9ed7452475cc47665b424af7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2023-11-13更新
|
204次组卷
|
2卷引用:山西省临汾市2023-2024学年高二上学期期中数学试题
7 . 已知过点
的直线交
于
两点,
,直线
交直线
于点
,且
.记点
的轨迹为
.
(1)求
的方程;
(2)设
与
交于点
,若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760bb4b1dbcd14bebd12c219520597f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51361b9eac829806ad41a101004a7c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0da2af48fc4ad16edc5070ddea600614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14123eb228bceaf992d92efc4dedbd25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/3/de4207f6-914b-4edd-9d43-da8441a87386.png?resizew=151)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0472f13fca8d4a79cfe87547d76431c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
2023-11-11更新
|
384次组卷
|
2卷引用:山西省大同市2023-2024学年高二上学期11月期中数学试题
8 . 在
中,已知
.
(1)求
外接圆的一般方程;
(2)求
边上的高所在的直线与
边上的中线所在直线的交点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/081249ecb8fca06dfd2c5bc7cd0b2896.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次
2023-11-11更新
|
295次组卷
|
2卷引用:山西省大同市2023-2024学年高二上学期11月期中数学试题
名校
解题方法
9 . 已知
.
(1)当
时,
与
相交于
两点,求直线
的方程;
(2)若
与
相切,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/758094246a1c305d55df30cddcfad61a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9e69fd92eceb49fed10c4b50723d13d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f7ba050bb69ab55bdcb96f935f5922.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9e69fd92eceb49fed10c4b50723d13d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f7ba050bb69ab55bdcb96f935f5922.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-11-11更新
|
226次组卷
|
4卷引用:山西省大同市2023-2024学年高二上学期11月期中数学试题
山西省大同市2023-2024学年高二上学期11月期中数学试题西藏自治区拉萨市部分学校2023-2024学年高二上学期期末联考数学(理)试题(已下线)模块三 专题5 大题分类练(直线和圆的方程)基础夯实练 期末终极研习室(高二人教A版)江西省宜春市丰城中学2023-2024学年高二上学期第三次月考数学试题
解题方法
10 . 如图,在直三棱柱
中,
,垂足为
,
为线段
上的一点.
(1)若
为线段
的中点,证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
平面
;
(2)若平面
平面
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ddf567d1ba4aacf1fe3952fa2cb964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/12/8e184e72-f155-4e1b-847a-a2a7fc1aae7b.png?resizew=151)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d28c625d7ac6878957facc8274d459c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9539f8fb13345b449274b67bbda995db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6620a31d683f77593f00ec2a45c914.png)
您最近一年使用:0次