1 . 已知函数
,令
,
,若
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0b47d4c5d3ddd3ce7f949670d36f974.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6fc51ae6ba348d0e4d3765a4818406e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6984d11b79b3b4222178dec44c0e4288.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3bd164f5ace47e6c9fa4c2a4e7c4ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59993bee84d6bb8666ae9a8cd433d51c.png)
您最近一年使用:0次
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2 . 如图,在四面体
中,
和
均是边长为6的等边三角形,
,则四面体
外接球的表面积为_________ ;点E是线段AD的中点,点F在四面体
的外接球上运动,且始终保持EF⊥AC,则点F的轨迹的长度为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e20064b8ad6246d4c307f419da145d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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3 . 已知
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8810788493253bb05e57e8c147e799d.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9edf79d1b9505876a946f949b3d04593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a837149d753a3457daeb1eef3a90f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8810788493253bb05e57e8c147e799d.png)
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2024-06-12更新
|
497次组卷
|
2卷引用:江西省宜春市宜丰中学2023-2024学年高二下学期6月月考数学试题
名校
解题方法
4 . 若对任意的
,不等式
恒成立,则
的最大整数值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f85ad2f8c06af4eabd647a760498bf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-05-11更新
|
359次组卷
|
4卷引用:江西省宜春市宜丰中学2023-2024学年高二下学期6月月考数学试题(创新部)
5 . 已知数列
的前
项和为
,
,
,对于任意的
,
,不等式
恒成立,则实数
的取值范围为__________ .
![](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/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef3f4fd9d7ea6f1512948f1d68756eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a111628c5ea54305dba24105b84900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a36edf9da85238914aea6c46b0f4575b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2024-05-08更新
|
441次组卷
|
2卷引用:江西省宜丰中学2023-2024学年高二下学期4月期中考试数学试题
名校
解题方法
6 . 已知函数
,则
的取值范围为_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a06915972279d098e33ca1bab2d1710d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
7 . 已知向量
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d6fce004c47849c29ebd8d5d7c16e98.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/552c490975ee543c9a1f3795f5876469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e689da273bdd074f66480e6898a88a36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d6fce004c47849c29ebd8d5d7c16e98.png)
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2024-05-04更新
|
450次组卷
|
2卷引用:江西省宜春市丰城市第九中学2023-2024学年高二下学期4月期中考试数学试题
解题方法
8 . 为了调查学生对网络课程是否喜爱,研究人员随机调查了相同人数的男、女学生,发现男生中有80%喜欢网络课程,女生中有40%不喜欢网络课程,且有95%的把握认为喜欢网络课程与性别有关,但没有99%的把握认为喜欢网络课程与性别有关.已知被调查的男、女学生的总人数为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
__________ .
附:
.临界值表:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca95cdb3174f0c923e82c6670526531.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
附:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a888b2811f8c8463af5932c8eb98784.png)
0.050 | 0.010 | 0.005 | 0.001 | |
3.841 | 6.635 | 7.879 | 10.828 |
您最近一年使用:0次
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9 . 已知全集
,集合
,集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d19c887002cc13f351b14b929c02d1d.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dc8098ad6f31bdd87771ca9cfa33a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17bc54fa2033989b6829b201cc29f0b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41d32e3a0529f5c7760a263d4389449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d19c887002cc13f351b14b929c02d1d.png)
您最近一年使用:0次
2024-04-15更新
|
435次组卷
|
2卷引用:江西省上高二中2024届高三适应性考试数学试卷
2024·全国·模拟预测
名校
解题方法
10 . 已知数列
满足
,
,
,数列
的前
项和为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dce68170dd7fa4eaacb02f13fffd64c.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6d5ae5a3b974e5e8a9407b7d0278575.png)
![](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/2dce68170dd7fa4eaacb02f13fffd64c.png)
您最近一年使用:0次
2024-04-05更新
|
297次组卷
|
3卷引用:江西省宜春市丰城市第九中学2023-2024学年高二下学期4月期中考试数学试题