解题方法
1 . 已知双曲线
的一个焦点为
为坐标原点,点
在双曲线上运动,以
为直径的圆过点
,且
恒成立,则
的离心率的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844a1c77cdc51fb57f2fc55d791ea64f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09224287f31db61f4335560cdaf28ae3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.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/4ed568f7b6490ebbb104d105dbc07f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
解题方法
2 . 已知向量
与
夹角为锐角,且
,任意
,
的最小值为
,若向量
满足
,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f9df42552e714a5212708a04e160f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e87088da41685cc8d433fbbe0e18d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4174a2836522e58d1060d6dd799358e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907c0fa29b61cb90409b1b260457597a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83634e314df24df73ae37d25a44d20e3.png)
您最近一年使用:0次
2022-12-16更新
|
2105次组卷
|
6卷引用:四川省南充市2023届高三上学期高考适应性考试(一诊)文科数学试题
名校
解题方法
3 . 在矩形
中,
,
,
,
是平面
内的动点,且
,若
,则
的最小值为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d582d3e7ec013a1b409810ed38633d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a8c4f87043cd193f95d6ebcc1fc5f5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d61f98f7418eda31a1d7c457e3841c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990b2fb4961eebd49a6eb62e2beef238.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/26/a0c2d1bc-b38f-4cd6-8830-5e9fc86a037f.png?resizew=186)
您最近一年使用:0次
2022-06-25更新
|
1571次组卷
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5卷引用:浙江省丽水市2021-2022学年高一下学期普通高中教学质量监控(期末)数学试题
浙江省丽水市2021-2022学年高一下学期普通高中教学质量监控(期末)数学试题青海省西宁市城西区青海湟川中学2022-2023学年高三上学期12月月考文科数学B试题(已下线)专题8-1 直线与圆归类(讲+练)-3(已下线)重难点01平面向量的实际应用与新定义(2)(已下线)上海市华东师范大学第二附属中学2023-2024学年高二上学期10月月考数学试题
解题方法
4 . 已知
,
均为单位向量,与
,
共面的向量
满足
,
,则
的最大值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/524594bf0942ed86f56fc1eee120a81a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad689f2b7f4c250ceb76e9f773f1d312.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611167bc7a0f0059021c0c5832d7913f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07efae5a678a3005c7bf17a051278cdb.png)
您最近一年使用:0次
5 . 已知非零向量
,
,
满足:
,且不等式
恒成立,则实数
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c308ea87b699ee1dcb879a568899de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41f48b124d567bd97b70a3e5f7a1ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac52df4643a727b8da4c3a398c072118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2019-07-11更新
|
2108次组卷
|
4卷引用:浙江省慈溪市2018-2019学年高二第二学期期末数学试题
浙江省慈溪市2018-2019学年高二第二学期期末数学试题浙江省慈溪市2018-2019学年高二下学期期末数学试题(已下线)07练-冲刺2020年高考数学小题狂刷卷(浙江专用)浙江省温州市乐清市知临中学2021-2022学年高二下学期期中数学试题
名校
6 . 已知
是
外接圆的圆心,若
且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
_______ .(
的角
所对边分别为
,外接圆半径为
,有
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8c65bea2c80af038768b74250c694e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fe354155ddb9172a37d4c75842f48a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54c5f5c786e00e716284fc96fe89049.png)
您最近一年使用:0次
2017-10-19更新
|
4420次组卷
|
3卷引用:湖北省黄石市第三中学2018届高三阶段性检测数学(文)试题