1 . 已知平面非零向量
的模均为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799ad95449b4135dee2890ac31c43706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc983f1bad03411ae64d84ff7bdf2551.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a16710403d8a87b858d92647ebaa1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
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解题方法
2 . 设
,若对任意的
,都存在
,使得
成立,则
可以是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ae470980d6e3b53c65b9d42d1f011c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef85b287d0fc9611ac7ba4bade11d864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57045228fec057c04c8a9a3423ee9d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f2014d34387ba31955241a88aa2c252.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
3 . 若曲线
与曲线
恰有两个不同的交点,则实数
的取值范围为__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccefddc2e494392d1f084a32f2f0e906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0285c390d9dbd0a5c1d4650a993f04cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
4 . 在四面体
中,
,
,
,设四面体
与四面体
的体积分别为
、
,则
的值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a351136b18bc7d3bd5122332772ab23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a8c3adfb5c3cb6dd9ba688856e2dd0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90592be71b12efb676770f65d68596f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d1bb96d6663c8cdbf43ba53e1505e1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a351136b18bc7d3bd5122332772ab23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f107bd06ad6af2ff8d5aaa9ace12d9a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4764374bd2fb78e59cd0b283637baeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63055a5d6916f99d07fede49120753f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae00abada46919dffcfb342971dcdabd.png)
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解题方法
5 . 如图,已知
是中心在坐标原点、焦点在
轴上的椭圆,
是以
的焦点
为顶点的等轴双曲线,点
是
与
的一个交点,动点
在
的右支上且异于顶点.
与
的方程;
(2)若直线
的倾斜角是直线
的倾斜角的2倍,求点
的坐标;
(3)设直线
的斜率分别为
,直线
与
相交于点
,直线
与
相交于点
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddce26f65377a01043af2acb9bee432.png)
,
,求证:
且存在常数
使得![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/044cb469da60d7a76c11f42f90533b66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d82387e48eafb286785a21a8d4150f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddce26f65377a01043af2acb9bee432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94198c652d70302c740e3f692e42a454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4af8e86f3c8719c8fe5d045ea67eec14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46b728c0e69820cdcd839e67ffdb1014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b22e978bcc4cd445eef817cf48f32c93.png)
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解题方法
6 . 已知数列
是给定的等差数列,其前
项和为
,若
,且当
与
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d065b001d48a52d4a9e28182cf9373f.png)
取得最大值,则
的值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07948544351dd327cb43c8d36280653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235c5ec0f01ce8c3af2191116cab3e45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4ca4f2b82d9d7a8323c8d697338a6a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d065b001d48a52d4a9e28182cf9373f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a3d0379a536cb2ec9d6647e165bf48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f49a8861a57e5de89b2bd94ab55c9163.png)
您最近一年使用:0次
2024-04-24更新
|
326次组卷
|
2卷引用:上海市黄浦区2024届高三二模数学试题
名校
解题方法
7 . 设函数
.若存在
,使得
成立,则实数a的取值范围是______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/476658d95087fb7fc3512be7a193ee85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acdc6e6a0e6584bea7deb91b0841fa28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3177ec852ce892a2f3111549df285d18.png)
您最近一年使用:0次
2024-04-05更新
|
513次组卷
|
2卷引用:上海市黄浦区大同中学2024届高三下学期2月月考数学试题
名校
8 . 以
表示数集
中最大的数.设
,已知
或
,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9e93122e2e5b93c1141001872a250ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e42e2c6fd11eeb8b3f6f3127024309f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f234687dc99c16f40a77dae2c4954af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b9347ce52e9e771883bdef7a4cb589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cccab193401c409daa0f05223ac9421.png)
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2024-01-19更新
|
6539次组卷
|
9卷引用:上海市黄浦区大同中学2024届高三下学期2月月考数学试题
上海市黄浦区大同中学2024届高三下学期2月月考数学试题2024年1月普通高等学校招生全国统一考试适应性测试(九省联考)数学试题(已下线)2024年1月普通高等学校招生全国统一考试适应性测试(九省联考)数学试题变式题11-152024年九省联考试卷分析及真题鉴赏(已下线)不等式性质及其解法(已下线)考点6 等式性质与不等式性质 --2024届高考数学考点总动员【练】(已下线)微考点1-1 新高考新试卷结构中不等式压轴4大考点总结(已下线)新题型01 新高考新结构二十一大考点汇总-2福建省厦门双十中学2023-2024学年高二下学期开学考试数学试题
名校
解题方法
9 . 已知
是定义在R上的偶函数,若
、
且
时,
恒成立,且
,则满足
的实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673207f6b77b8192d25463d071737b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a074019a75a26e8d6b9147731a29a40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9140b556e56c0f01db6121585386b12a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c5c98fe5592a33d503fbb9d00052420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/553faa1826a6c2e17c438e264c6bcb5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-22更新
|
1617次组卷
|
8卷引用:上海市黄浦区大同中学2024届高三下学期2月月考数学试题
名校
10 . 已知平面向量
,
,
,满足
,
,
且
,若对每一个确定的向量
,记
的最小值为
,则当
变化时,实数
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2396cac4b185cf1f1a67dad9248481c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ca6b59bdd54ca0cc3632409dfb39dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/073cc1a4bfc55840bab1b09be90cca70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f2047ceb577ccb3a944173f310777ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26abac73b9cb1af5c5d8e8c2dd136bbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-05-28更新
|
1310次组卷
|
5卷引用:上海市黄浦区格致中学2024届高三下学期开学考试数学试题
上海市黄浦区格致中学2024届高三下学期开学考试数学试题(已下线)模块6 平面几何篇 第2讲:向量的数量积与极化恒等式【练】(已下线)【讲】 专题一 平面向量线性运算的最值问题(压轴大全)上海市南洋模范中学2023届高三三模数学试题(已下线)模块一 情境4 以平面向量为背景