名校
解题方法
1 . 在
中,角
,
,
所对的边是
,
,
,
且
,若
,则实数
的值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147ab2d582e60bee6d81b27236e7288b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/925df015ec251243cc4eb41ef3eb2a90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b1f3a1de4fb768fa22eeebee1391ee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-01-17更新
|
905次组卷
|
3卷引用:江西省师范大学附属中学、九江第一中学2018届高三11月联考数学(理)试题
江西省师范大学附属中学、九江第一中学2018届高三11月联考数学(理)试题(已下线)《2018届优生-百日闯关系列》数学专题 一 第五关 以向量与解析几何、三角形等相结合为背景的选择题浙江省宁波市北仑中学2022-2023学年高一下学期期中数学试题
2 . 已知
是圆
上任意一点,点
的坐标为
,直线
分别与线段
交于
两点,且
,
.
(1)求点M的轨迹C的方程;
(2)直线
与轨迹C相交于
两点,设O为坐标原点,
,判断
的面积是否为定值?若是,求出定值,若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f907ad18841ebbeecc9ead925cb2ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97619e5903960a4d0dba05f553b3f624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407ac7e1807b3bfe7128c42a5e7922b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b800ce557136b897b05aab6c192eb339.png)
(1)求点M的轨迹C的方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a03fd02ebf5d4da6dbbe0765d39acc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
您最近一年使用:0次
名校
3 . 已知向量
满足
,若
,
的最大值和最小值分别为
,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ba63ad02b1d5af2982fac3d91eb15c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9e083a766f86980d17aa73455d17d54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de868f66e0b7782d5c1815a301c7a48a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db5bf907353e5443aa5ec272e3aa589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
A.![]() | B.2 | C.![]() | D.![]() |
您最近一年使用:0次
2017-05-26更新
|
1342次组卷
|
2卷引用:河北省衡水中学2017届高三下学期第三次摸底考试数学(理)试题
名校
4 . 已知动点
在椭圆
上,若点
的坐标为
,点
满足
,
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6663643c7eafdb5ef52636018dfb3c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c3a2f5b0702ea9fbb9dc8904579737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b5c475ec658c483dca45c469ab6401f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bacdfbfd7166f58f4a25e81ce5ef535.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/517a8041c31709c7ae8f2fb287c961db.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-05-10更新
|
2587次组卷
|
6卷引用:河北省石家庄市2017届高三毕业班第二次模拟考试数学(文)试题
河北省石家庄市2017届高三毕业班第二次模拟考试数学(文)试题(已下线)2018年高考二轮复习测试专项【新课标理科】热点十一 圆锥曲线中的综合问题(已下线)2018年高考二轮复习测试专项【新课标文科】热点十一 圆锥曲线中的综合问题河北省石家庄市第一中学2017-2018学年高二下学期期中考试数学(文)试题内蒙古包头市北重三中2019-2020学年高二下学期期中考试数学(理科)试题(已下线)考点30 直线与圆锥曲线-2021年新高考数学一轮复习考点扫描
5 . 在平面内,定点
,
,
,
满足![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/f089667a87164fdaa8586f7296b7c033.png?resizew=75)
,![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/de53711608eb4962ac96f7c25b5d6574.png?resizew=133)
,动点
,
满足
,
,则
的最大值为__________ .
![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/3fc31cc5ff3442f3a6df1252c303dd08.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/d54681289a4a4455954530cea3453065.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/524320553e0f49e1b7e46b4d0f18bebe.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/e6c913fbae9748ee82376db95b293ce0.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/f089667a87164fdaa8586f7296b7c033.png?resizew=75)
![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/31294e674d3d4d31a4bfeca793bed317.png?resizew=69)
![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/de53711608eb4962ac96f7c25b5d6574.png?resizew=133)
![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/558924a0713e4fcd9d248fd544189d82.png?resizew=97)
![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/16d64912ac39481e9d700f39f16302cd.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/4c347c3fb1184a83ab962cb10bfde4fd.png?resizew=21)
![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/38d3f4fa9e4540a8a0877bf2045899ff.png?resizew=52)
![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/03dd62fedfc143b08329489faa15ef7d.png?resizew=72)
![](https://img.xkw.com/dksih/QBM/2017/4/27/1674916910194688/1679661056770048/STEM/aeeeb35354f04d7a8228a53787d06647.png?resizew=41)
您最近一年使用:0次
名校
6 . 已知向量
的夹角为
,
,若
,则
为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/616290812d5ef754210b003b0c21fd01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ad1b0a76a887783392268ae203ad22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825dfeea0a6519dfe8f67355deb2eeaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c4ccbcc01bcf04622186eceec9031cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
A.等腰三角形 | B.等边三角形 | C.直角三角形 | D.等腰直角三角形 |
您最近一年使用:0次
2017-02-17更新
|
1937次组卷
|
2卷引用:2017届山西省怀仁县第一中学高三上学期期末考试数学(理)试卷
7 . 已知曲线
:
,
为坐标原点.
(1)当
为何值时,曲线
表示圆;
(2)若曲线
与直线
交于
两点,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3eaf44e8fac880eec239aa55846f767.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b818e1793be8d9213e903e5224987a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0b06dc01c30d13f64be2ac6a1d811e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
8 . 高三十二班同学设计了一个如图所示的“蝴蝶形图案”(阴影区域)来预示在6月的高考中,同学们展翅高飞,其中
是过抛物线
的焦点
的两条弦,且
,点
为
轴上一点,记
,其中
为锐角.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/02dc7579-9d8e-4145-a9cd-b7511580a729.png?resizew=217)
(1)求抛物线的方程;
(2)当“蝴蝶形图案”的面积最小时,求
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3c032441543354c154ee67d744abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fdb88db185cf531b024327017fb0be4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5327879c0e56298c5430a5e466be4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/02dc7579-9d8e-4145-a9cd-b7511580a729.png?resizew=217)
(1)求抛物线的方程;
(2)当“蝴蝶形图案”的面积最小时,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2016-12-04更新
|
644次组卷
|
3卷引用:2016届黑龙江哈尔滨一中高三第二次模拟考试数学(理)卷
解题方法
9 . 已知向量
,
,定义:
,其中
.若
,则
的值不可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5aa846a5b7c96fe2ce665eb1ea5f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6500d23b2750afcb9e307c85a5e62846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9b9448897eb9cfc94841d2a84205f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3ede869e508a8c8bda34a16782f863.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd605becbf441687cdb584d6c53839af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eb90fd2c5ca42405882077b4b022d47.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-03更新
|
492次组卷
|
2卷引用:2015届浙江省嵊州市高三第二次教学质量调测理科数学试卷
解题方法
10 . 已知集合
,若对于任意
,存在
,使得
成立,则称集合
是“
集合”,给出下列4个集合:
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9284dd38c878a8971cb906f726e680d9.png)
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d603992909b323d7a833d9f755630c0.png)
③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7b79073f6ae25cc9bcca5108f4eb439.png)
④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdff4091a7ebadfe87488bebb689b00.png)
其中所有“
集合”的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/840bd73317f781e4b6ba65625a72f67e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ec6481a31d338e905d607bc17fdd6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f73ce10423e80cee0e7d602ca77d198d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da3ff6f17be99ec311610efa08ba002.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9284dd38c878a8971cb906f726e680d9.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d603992909b323d7a833d9f755630c0.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7b79073f6ae25cc9bcca5108f4eb439.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdff4091a7ebadfe87488bebb689b00.png)
其中所有“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
A.①③ | B.①④ | C.②④ | D.②③④ |
您最近一年使用:0次