名校
1 . 已知函数
,若对于正数
,直线
与函数
的图象恰有
个不同交点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d444d2ca32dbf5ba01ce72391f5d605.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccec6a978a64616bf26ff67aeedd0e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a87c4ba9f341a9d01c6ce7422273ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbeedfeeb6d3fe123b6170962b97aeb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2def5aa62f497709e1bd8258583d62fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d444d2ca32dbf5ba01ce72391f5d605.png)
您最近一年使用:0次
2019-11-08更新
|
466次组卷
|
2卷引用:上海市杨浦高级中学2016-2017学年高三下学期开学考试数学试题
名校
2 . 已知无穷等比数列
的公比为
,前
项和为
,且
,若对于任意
,
恒成立,则公比
的取值范围是________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.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/920487741274a1066a0aefb110711dde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92481d5a4f3780e6c19a9ab4b1006d32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
您最近一年使用:0次
2020-01-03更新
|
275次组卷
|
4卷引用:上海市南模中学2017-2018学年高三上学期开学考数学试题
名校
3 . 已知数列
满足:对任意的
均有
,其中
为不等于0与1的常数,若
,
,则满足条件的
所有可能值的和为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec295b3214120599a9c069a43ff301a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecad7dae7d34020ca3f767fc97ed3c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ad7a0ba689863d59d9b3221f4f6610.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
您最近一年使用:0次
2020-01-07更新
|
313次组卷
|
2卷引用:上海市闵行区七宝中学2016-2017学年高三下学期开学考试数学试题
名校
4 . 已知在等腰梯形
中,
,
,
,双曲线以
,
为焦点,且与线段
,
(包含端点
,
)分别有一个交点,则该双曲线的离心率的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf16cda1fef90b1696cced97a2d90267.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05740f0c6071846227dc0ec177ad15e8.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2018-02-27更新
|
863次组卷
|
7卷引用:湖北省部分重点中学2018届高三起点考试数学(理)试题
名校
解题方法
5 . 已知函数
是
上的偶函数,满足
,且当
时,
,令函数
,若
在区间
上有
个零点,分别记为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f118f5cbbedfd4a8cb423461d0aafa7.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb509f325dec223294f5fa74981970d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790daaa89fc9d093f45023becf765697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d540673cb5286eaa13a84e302e1a5270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b946a8ec829a341aa6806a3eb0b9ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a766abc183c7d2cca0f3e73230c88dc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4430d542ab6e63baed2e527f538b47b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f118f5cbbedfd4a8cb423461d0aafa7.png)
您最近一年使用:0次
2017-09-10更新
|
943次组卷
|
3卷引用:江西省九江第一中学2017-2018学年高二上学期开学考试数学(文、理)试题
6 . 以
为钝角的
中,
,当角
最大时,
面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60669b7874ec87abf9b620225d33fdeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
7 .
为圆
上任意一点,异于点
的定点
满足
为常数,则点
的坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9e4edb7fdbfd26090c0e51ed5488a9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b2cc0d2f6d3eee9a33db83e0c0830d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46792cd90b32ee00aef72019bedaf416.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
2017-09-06更新
|
1332次组卷
|
3卷引用:江苏省南京市溧水高级中学2018届高三上学期期初模拟考试 数学
江苏省南京市溧水高级中学2018届高三上学期期初模拟考试 数学河北省定州中学2018届高三上学期毕业班第二次月考数学试题(已下线)专题5.4 解析几何中的定值与定点问题-玩转压轴题,进军满分之2021高考数学选择题填空题
名校
8 . 已知等腰
中,
,
分别为
的中点,沿
将
折成直二面角(如图),则四棱锥
的外接球的表面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa8cee7d2463f6f7d352e8b65f47cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9187c2852c14221b0a0ea0351267ad.png)
![](https://img.xkw.com/dksih/QBM/2017/9/11/1771633272651776/1771979449180160/STEM/9a1901781ad54d509332e2568e4a7c6d.png?resizew=187)
您最近一年使用:0次
2017-09-01更新
|
1169次组卷
|
2卷引用:河北省定州中学2017-2018学年高二上学期开学考试数学试题
名校
9 . 若二次函数
的图像和直线
无交点,现有下列结论:
①方程
一定没有实数根;②若
,则不等式
对一切实数
都成立;
③若
,则必存在实数
,使
;④若
,则不等式
对一切实数都成立;⑤函数
的图像与直线
也一定没有交点,其中正确的结论是__________ .(写出所有正确结论的编号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d7ed6f4b0e08cd887d2fdc2a5e37e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
①方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec6e3551a703676ea0dd20d538db32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44958833dd230f5a2632216dbb5e6fd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34dd0d6dd65da70bd16a1bc8fce63f45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e56f4504e0f80fd031c8b5f41832e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a3c2d7fd92fd4c4244c287e5ec5b48a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54f7c2b2ef9315531f8f3586a93933ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1d8d5cea065075fe50706abe3ae802.png)
您最近一年使用:0次
名校
10 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa04843943d523d4d688ee5d2c8a4a8.png)
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa04843943d523d4d688ee5d2c8a4a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200485dec9cc0089b6aadcea26666342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
2017-08-25更新
|
853次组卷
|
3卷引用:河南省郑州市第一中学2018届高三上学期入学考试数学(理)试题
河南省郑州市第一中学2018届高三上学期入学考试数学(理)试题河南省息县第一高级中学2017届高三下学期第一次适应性测试数学(理)试题(已下线)专题4-1 三角函数性质、最值和w小题归类-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)