解题方法
1 . 已知三棱锥
中,平面
平面
,且
,
,若
,
,则三棱锥
的外接球的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78307cd417504554a4e2276fe24d1162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1885439a4bc9eb594b6e050afc53f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1804c3641953c30ccf750504eff6577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-06-17更新
|
811次组卷
|
3卷引用:江西省赣州市教育发展联盟2023届高三上学期第9次联考(12月)数学(文)试题
江西省赣州市教育发展联盟2023届高三上学期第9次联考(12月)数学(文)试题江苏省南京市励志高级中学2022-2023学年高二下学期期末数学试题(已下线)模块二 专题5《立体几何初步》单元检测篇 B提升卷 (苏教版)
名校
2 . “
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcbe8b4bcd32e5a64ebfd873f8cbb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d30a72a2f96de654b219df82c26f2b7f.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2023-06-17更新
|
915次组卷
|
5卷引用:江西省赣州市教育发展联盟2023届高三上学期第9次联考(12月)数学(文)试题
江西省赣州市教育发展联盟2023届高三上学期第9次联考(12月)数学(文)试题天津市南开中学2022-2023学年高二下学期期末数学试题(已下线)模块二 专题2 三角函数的性质与图象 B提升卷(人教B)天津市南开中学2023-2024学年高一上学期第三次学情调查数学试卷(已下线)【第三练】5.4.3正切函数的性质与图象
3 . 已知函数
,且对于任意
,都有
,下列序号中,①
在区间
上单调递增;②
;③若
,则
;④若实数m使得方程
在
上恰有
,
,
三个实数根,则
.正确的序号有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/696c606b32f4f473acd0d0df35fa9605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8f4e3896e6152732c7ffcadcb436b59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ab6a7895e97359d3e30775eefa3365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84c6af90757c4b069ce4a04c24e1f7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c249527c28327fb8bc13444824bbb0d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da4aa5e994e40e2a644c46764d3fd6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31bc0c34811edba74dae3fcaed8f577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1210474948a57600e1d549fb0fb1457a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18875101c5682fdb50976ae6d958bb7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b1750dfd622be19eeee2e6e1d6aeb78.png)
A.①②③ | B.①③④ | C.①②④ | D.②③④ |
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解题方法
4 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cadd2fc007ecc36d1c5149864452cac0.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51474d91e540a475138571e8738de850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cadd2fc007ecc36d1c5149864452cac0.png)
您最近一年使用:0次
2023-05-02更新
|
683次组卷
|
2卷引用:江西省赣州市七校2023届高三上学期期中联考数学(理)试题
5 . 已知
的内角
,
,
的对边分别为
,
,
,记
的面积为
,若
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bec8d58c8f919df5aecda2f535989623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2122e3f1e76a635e58e4d54aa594c552.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
6 . 锐角
中,
,
,
为角
,
,
所对的边,点
为
的重心,若
,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac181587e24ada2d254f9918b62e70a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa6361e919ac07ee6ed642556e1d1ae.png)
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解题方法
7 . 已知函数
,
为奇函数,其图像相邻的对称轴之间的距离为
.
(1)求函数
的解析式及其减区间;
(2)在
中,角A、B、C对应的边为a、b、c,若
,
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d06042c30569809ca5044496b332687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3af2f2948f0a8f5ef134e706d16db183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd5729871282f41e581579dd8a0ae24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5cbff84327e964f912a54032e76ccc9.png)
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解题方法
8 . 在
中,内角A,B,C的对边分别a,b,c,若
,
,则
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99f3bf0f91d096681a118f66af3b92e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbdb6296db839f754867d00d3cba1885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5813dd9f2bd01a38d749247eccca5449.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
9 . 已知圆O的方程为
,过圆O外一点
作圆O的一条切线
,切点为A,若
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec550c01b4f075f22ab67f5e55ed5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea63b3c96aeefa8fa43d12e2e082888c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b0113fd4c7d157757571f9a009e02af.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
10 . 在递增的等差数列
中,
,
是
和
的等比中项.
(1)求
的通项公式;
(2)若
,数列
的前n项和为
,求
.
![](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/5da4cd81500bdb43118150dbdb1541e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc858b7a95c5006a44067022da09f667.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990258ef3d98be6e549bba27ad58e50b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08c9965a04c2a6de04e949a15762f372.png)
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