解题方法
1 . 已知椭圆
的左、右焦点分别为
,离心率为
,点
是椭圆上任意一点,
的周长为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/17/447934e2-8c1e-4681-8808-b671a4aa480f.png?resizew=269)
(1)求椭圆
的方程;
(2)过点
任作一动直线
交椭圆
于
两点,记
,若在线段
上取一点
,使得
,则当直线
转动时,点
在某一定直线上运动,求该定直线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cfd997d3b66a3b8f7731b26f0ab0c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb8fb6f3d7540831a9e97d3b184a491.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/17/447934e2-8c1e-4681-8808-b671a4aa480f.png?resizew=269)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c397129dacf0871ab2db37e60560f4b9.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/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c949b322c7456370b74306df137bc35b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3eea6becd519fb12073008ceedf97f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
您最近一年使用:0次
名校
2 . 已知双曲线
的焦点是椭圆
:
的顶点,且椭圆与双曲线的离心率互为倒数.
(1)求椭圆
的方程;
(2)设动点
,
在椭圆
上,且
,记直线
在
轴上的截距为
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc7ca4890d6de3a9c15af2da204b5ef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设动点
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c1186e8522f399235a268dd3362002.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2017-04-28更新
|
3911次组卷
|
11卷引用:青海省西宁市第十四中学2019-2020学年高二上学期期中数学(理)试题
青海省西宁市第十四中学2019-2020学年高二上学期期中数学(理)试题2017届广东省广州市高三4月综合测试(二)数学理试卷河北省衡水中学2018届高三数学(理科)三轮复习系列七-出神入化4【校级联考】安徽省定远重点中学2019届高三上学期第三次月考数学(文)试题辽宁省六校协作体2019-2020学年高三上学期开学考试数学(理)试题辽宁省六校协作体2019-2020学年高三上学期开学考试数学(文)试卷陕西省汉中市2019-2020学年高三上学期教学质量第一次检测考试数学(理)试题(已下线)2020届高三12月第01期(考点08)(理科)-《新题速递·数学》(已下线)专题10 解析几何中两类曲线相结合问题(第五篇)-备战2020年高考数学大题精做之解答题题型全覆盖辽宁省朝阳市凌源市第二高级中学2020-2021学年高三上学期期中数学试题北京师范大学珠海分校附属外国语学校2020-2021学年高二上学期期中考试数学试题
名校
解题方法
3 . 直线
:
与双曲线
:
相交于不同的
、
两点.
(1)求AB的长度;
(2)是否存在实数
,使得以线段
为直径的圆经过坐标原点?若存在,求出
的值;若不存在,写出理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6767830cc1811f0f4ea5a008fdc7e723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d494590d49480ec45f55b84098aa99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求AB的长度;
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2017-04-13更新
|
838次组卷
|
2卷引用:青海省西宁市第五中学2016-2017学年高二上学期期末考试数学(文)试题
名校
4 . 已知椭圆
和直线
:
,椭圆的离心率
,坐标原点到直线
的距离为
.
(Ⅰ)求椭圆的方程;
(Ⅱ)已知定点
,若直线
过点
且与椭圆相交于
两点,试判断是否存在直线
,使以
为直径的圆过点
?若存在,求出直线
的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d622330932e0700abced7a1a5cc1b2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/234e7679481ec0d01c915b7fbb71891d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(Ⅰ)求椭圆的方程;
(Ⅱ)已知定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97fb96d52f1ab7cd9c4e9427838bd6e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c10f14aae6fb21e047ecb39cdf40c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/2017/5/3/1679075251707904/1737914244718592/STEM/14b9e239d59b4bce87b80c6bf95bf35f.png?resizew=175)
您最近一年使用:0次
2017-03-09更新
|
875次组卷
|
5卷引用:青海省西宁市城西区第二中学2019-2020学年高二上学期期末数学试题
11-12高三·宁夏银川·阶段练习
名校
5 . 如图,四棱锥
的底面为矩形,
是四棱锥的高,
与
所成角为
,
是
的中点,
是
上的动点.
![](https://img.xkw.com/dksih/QBM/2016/12/29/1619414123896832/1619414124322816/STEM/095ead0c-61e0-4e5d-bd43-51f97ea6a349.png?resizew=226)
(1)证明:
;
(2)若
,求直线
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.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/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2016/12/29/1619414123896832/1619414124322816/STEM/095ead0c-61e0-4e5d-bd43-51f97ea6a349.png?resizew=226)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a395778dcf588264f40e1cd8c96206d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c310aa0cddf8c787c3d21b737475a15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37793a3a810e823e10c340986f55ddd.png)
您最近一年使用:0次
2017-02-08更新
|
1756次组卷
|
4卷引用:2020届青海省西宁市六校(沈那、昆仑、总寨、海湖、21中、三中)高三上学期期末数学(理)试题
名校
6 . 若椭圆
的左右焦点分别为
,线段
被抛物线
的焦点
内分成了3:1的两段.
![](https://img.xkw.com/dksih/QBM/2016/9/9/1573011260375040/1573011266510848/STEM/11712ac3ba044f40b62e7bd5e867f760.png?resizew=286)
(1)求椭圆的离心率;
(2)过点
的直线
交椭圆于不同两点
,且
,当
的面积最大时,求直线
和椭圆的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643ef7d761de0e794fc39937dc72ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e464e56ccbc33ed31393e8bff32ac66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/2016/9/9/1573011260375040/1573011266510848/STEM/11712ac3ba044f40b62e7bd5e867f760.png?resizew=286)
(1)求椭圆的离心率;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2f117dc9adcb8fa7acf25bd2cbf283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://img.xkw.com/dksih/QBM/2016/9/9/1573011260375040/1573011266510848/STEM/41843e6f64af483cbce98f6869a0f5eb.png?resizew=72)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2016-12-04更新
|
539次组卷
|
4卷引用:【全国市级联考】青海省西宁市2018届高三下学期复习检测二(二模)数学文科试题
7 . 已知命题
:方程
有两个不相等的实根;命题
:关于
的不等式
对任意的实数
恒成立.若“![](https://img.xkw.com/dksih/QBM/2016/5/10/1572629619736576/1572629625659392/STEM/9f93746a76cd44ccb4080809b0e4bcbb.png)
”为真,“![](https://img.xkw.com/dksih/QBM/2016/5/10/1572629619736576/1572629625659392/STEM/d3123e4755fc4694a49ec73ac02ae081.png)
”为假,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/5/10/1572629619736576/1572629625659392/STEM/d10323e66ac04a7db07bc1bddfab1af0.png)
![](https://img.xkw.com/dksih/QBM/2016/5/10/1572629619736576/1572629625659392/STEM/dbe95a192dc64dc58b7e9157e7d91dd0.png)
![](https://img.xkw.com/dksih/QBM/2016/5/10/1572629619736576/1572629625659392/STEM/4b5d0c9f107e4f30b89212819dd1b20b.png)
![](https://img.xkw.com/dksih/QBM/2016/5/10/1572629619736576/1572629625659392/STEM/2428b5793eba482e9d6db1098e149cbe.png)
![](https://img.xkw.com/dksih/QBM/2016/5/10/1572629619736576/1572629625659392/STEM/9ecd889041474a12b22294c88eab42cf.png)
![](https://img.xkw.com/dksih/QBM/2016/5/10/1572629619736576/1572629625659392/STEM/2428b5793eba482e9d6db1098e149cbe.png)
![](https://img.xkw.com/dksih/QBM/2016/5/10/1572629619736576/1572629625659392/STEM/9f93746a76cd44ccb4080809b0e4bcbb.png)
![](https://img.xkw.com/dksih/QBM/2016/5/10/1572629619736576/1572629625659392/STEM/4b5d0c9f107e4f30b89212819dd1b20b.png)
![](https://img.xkw.com/dksih/QBM/2016/5/10/1572629619736576/1572629625659392/STEM/d3123e4755fc4694a49ec73ac02ae081.png)
![](https://img.xkw.com/dksih/QBM/2016/5/10/1572629619736576/1572629625659392/STEM/4b5d0c9f107e4f30b89212819dd1b20b.png)
![](https://img.xkw.com/dksih/QBM/2016/5/10/1572629619736576/1572629625659392/STEM/9b99ad4f2fe44ddead178103c950e828.png)
您最近一年使用:0次
2016-12-04更新
|
230次组卷
|
3卷引用:2015-2016学年青海平安一中高二4月月考文科数学试卷
解题方法
8 . 已知椭圆:
,离心率为
,焦点
,
过
的直线交椭圆于
,
两点,且
的周长为
.
(1)求椭圆方程;
(2)与
轴不重合的直线
与
轴交于点
,与椭圆
交于相异两点
,
且
,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c9bebea391a1f9956dfcca98d9d1f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9b8f7d30bceb98ec262f7ec564c36c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3877017d1bf8d9d06228bc7d87743bf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.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/f4b5c81ee16e93e9822c4dc54c362cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
(1)求椭圆方程;
(2)与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d86c973723718be22a114daeb37f0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f2d7479433c7111ed66a7858b99139.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d334f84a83f69cf018bd625fad880be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2016-12-04更新
|
400次组卷
|
4卷引用:2016届青海省平安一中高三4月月考理科数学试卷
11-12高二下·河北衡水·阶段练习
9 . 椭圆
的一个顶点为
,离心率
.
(1)求椭圆方程;
(2)若直线
与椭圆交于不同的两点
.若满足
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f94c4f6b762fddb0e313050ef6932eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/700f1ef8d7b90141e0150d6440427a43.png)
(1)求椭圆方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a81bc772f0f6bffbd80778f5588549c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b485b62d004d52fb31d6ed99ccb7669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2016-12-04更新
|
381次组卷
|
4卷引用:青海省西宁市大通回族土族自治县2021-2022学年高二上学期期末考试数学(理)试题
青海省西宁市大通回族土族自治县2021-2022学年高二上学期期末考试数学(理)试题(已下线)2011-2012学年河北省衡水中学高二下学期一调考试文科数学2015-2016学年河南省南阳市一中高二下开学考文科数学卷湖南省岳阳市华容县2023-2024学年高二上学期期末监测数学试题
名校
10 . 在等腰
中,
,腰长为2,
、
分别是边
、
的中点,将
沿
翻折,得到四棱锥
,且
为棱
中点,
.
![](https://img.xkw.com/dksih/QBM/2019/5/14/2203473345437696/2203577458155520/STEM/2b5ca5f7587f4b5da68fee1f62db2f96.png?resizew=268)
(1)求证:
平面
;
(2)在线段
上是否存在一点
,使得
平面
?若存在,求二面角
的余弦值,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15514bc735fe4b744672edefe00009c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315f2329bfd431a843f4a4d33712ffa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa53abf5662cdd7b9943be264400b40.png)
![](https://img.xkw.com/dksih/QBM/2019/5/14/2203473345437696/2203577458155520/STEM/2b5ca5f7587f4b5da68fee1f62db2f96.png?resizew=268)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5f445af1ae136773cb338920552ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb49d869110f27140f5c1934143db2e.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcafa398cc6b6079883e7ad153eb62d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce9e1664f888e70b0bec872178dccd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18592ae87b1d30faba1a0b9b5e7542e1.png)
您最近一年使用:0次
2016-12-03更新
|
776次组卷
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4卷引用:【全国百强校】青海省西宁市第四高级中学、第五中学、第十四中学三校2019届高三4月联考数学(理)试题