名校
解题方法
1 . 已知数列
的前
项和为
,且
,数列
的前
项和为
,且
,则满足
的正整数
的最小值为________ .
![](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/3e9cf0f188204a08e33f13953c485eb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b608fb0e64139602daa8fef943420b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1dafb0eb2d715a6ea2504ebe65783d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
名校
解题方法
2 . 欧拉函数
表示不大于正整数
且与
互素(互素:公约数只有1)的正整数的个数.已知
,其中
,
,…,
是
的所有不重复的质因数(质因数:因数中的质数).例如
.若数列
是首项为3,公比为2的等比数列,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c47847486c103fabb5b4ba4220c6a8.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbc89a53c03cb86fb653bb82128f6cba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac535d98f300ff35496c66fe3c66a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be646cd52d7f2f1714e7542e75810f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adad9633b73dfbbb3d84b4f15979e99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b9bd3d8d836eb723be002c86a53740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b9fa588c3a8ac4df1b963a1f2850163.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c47847486c103fabb5b4ba4220c6a8.png)
您最近一年使用:0次
2024-06-03更新
|
568次组卷
|
3卷引用:浙江省绍兴市第一中学2024届高三下学期5月模拟数学试题
3 . 已知公差为正数的等差数列
的前n项和为
,
是等比数列,且
,
,则
的最小项是第______ 项.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f11a56cf817430f1e54c4ec06537848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5ecce3e02d809a8d4efe2dd8e5fce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdcd551bc3ae5b68470b9656178b8847.png)
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4 . 给定定点
,对任意可能的
,及函数
的图象上的任意可能的点
,
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71885f023172807ad43f2c9a670aa960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6499f194456d6ac45326a33c74fd781b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4323dcce28ed1206e6ff65600d0dc9e7.png)
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解题方法
5 . 某希望小学的操场空地的形状是一个扇形
,计划在空地上挖一个内接于扇形的矩形沙坑(如图所示),有如下两个方案可供选择.经测量,
,
.在方案1中,若设
,
,则
,
满足的关系式为______ ,比较两种方案,沙坑面积最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1eb76fe74cba30f7cbcde349ba80da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9774f83067ed956a551bc41adcce0469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deab30125e09b58dbd451fd2633ff9e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f5b71c93c132c3f5889e832a074978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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名校
解题方法
6 . 设数列
的前
项和为
,等比数列
的前
项和为
,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.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/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ade17a3e170be332f6f7cfeb63bc8f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/035b1510dd20059f498321d96a5091ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
您最近一年使用:0次
名校
7 . 在
中,角
的对边分别为
边上的高等于
,则
的面积是__________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b9a53e552116848849b76dab92d0ac.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da75f00cfe5ed9010f0afdba14372e5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/884a81f5d952786877f3515c8c8bc9f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b9a53e552116848849b76dab92d0ac.png)
您最近一年使用:0次
2024-04-12更新
|
888次组卷
|
3卷引用:2024届浙江省丽水、湖州、衢州三地市二模数学试卷
2024届浙江省丽水、湖州、衢州三地市二模数学试卷山东省菏泽第一中学人民路校区2024届高三下学期3月月考数学试题(已下线)第二章 平面向量及其应用章末重点题型复习(2)-同步精品课堂(北师大版2019必修第二册)
8 . 如图,射线
在第一象限,且与x轴正半轴的夹角为
,过点
作
于点A,作线段
的垂直平分线
交x轴于点E,交
于点B,作射线
,以
为边在
的外侧作正方形
,延长
交射线
于点
,以
为边在
的外侧作正方形
,延长
交射线
于点
,以
为边在
的外侧作正方形
……按此规律进行下去,则正方形
的周长为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b12d69150197ca89bac4a76851eaf0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76d76d91b21a5be2bb58446c7104bc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/062f62f8e6962504213178df9186b70b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b7dc2fe5d920e74d0941b8c1db9ec04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551d9dbea6e2147f1a626e58ce6e871c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d3cd866636143a514b95de563e43833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34876d748f30fa4fc2eb6a686b5ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35d098990cc285dce3b41e9f7d26275b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52e90dc669b9929e5857a5bba95d6ce1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ba42cd8dff520c1da49d754e77cc09.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/27/f3512b2e-c6f9-44bb-85b2-99759d8a295a.png?resizew=167)
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9 . 对
定义一种新运算
,规定:
(其中
均为非零常数),这里等式右边是通常的四则运算,例如:
,已知
,若关于
的不等式组
恰好有3个整数解,则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e77fbdae7b1dc3b68203dbaea5b1adf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0b3bde4c59d037de7957ae36a6ec75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22f1f83352df9f704b35cc5775e42e80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/101a3b192258439e9ef17208ad6f02e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2024-03-26更新
|
242次组卷
|
3卷引用:全国招生考试全真试卷数学4
名校
10 . 半径为R的球的内接正三棱柱的侧面积(各侧面面积之和)的最大值为______ .
您最近一年使用:0次
2024-01-16更新
|
428次组卷
|
2卷引用:浙江省嘉兴市第一中学2024届高三第一次模拟测试数学试题