名校
1 . 已知A,B,C为
的内角.
(1)若
,求
的取值范围;
(2)求证:
;
(3)设
,且
,
,
,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd26e94df91ca56fafabbce6c3e577b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6248aecaab8f633a0dd678685c40136b.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba934e1fd7be9f9b342066ad0fa442a.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31bb945e81369ffe14c348121e2ebbf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30e5667b41c253fe588e2996d9bea327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ffbc737f1cdb7cb3543fe2bb185f793.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b4bbc9382cc3da7c840718f66bcdcb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b72439ea2bf7b13e04599d9e4a97b84.png)
您最近一年使用:0次
2022-01-28更新
|
591次组卷
|
4卷引用:黑龙江省哈尔滨市呼兰区呼兰区第一中学校2021-2022学年高一上学期期末数学试题
黑龙江省哈尔滨市呼兰区呼兰区第一中学校2021-2022学年高一上学期期末数学试题黑龙江省哈尔滨市第三中学校2021-2022学年高一上学期期末数学试题(已下线)第14讲 三角恒等变换、三角函数的应用(7大考点)-2022-2023学年高一数学考试满分全攻略(人教A版2019必修第一册)(已下线)模块三 专题4 (三角函数)(拔高能力练)(北师大版)
2 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d3d94dd231911cc32a88c52fec57c4.png)
(1)求
的取值范围;
(2)若
,证明:
;
(3)求所有整数
,使得
恒成立.注:
为自然对数的底数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d3d94dd231911cc32a88c52fec57c4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbdb0c3d1cfb2fd04cf97d23fc643976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d189e23953bff9793761e50fc07958.png)
(3)求所有整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddfe16eafe503582cfc448816fa810d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad56439b3dd50694e5c9f473d2c1a875.png)
您最近一年使用:0次
名校
解题方法
3 . 设函数
.
(1)若
的解集为
,求实数
,
的值;
(2)当
,
时,若存在
,使得
成立的
的最大值为
,且实数
,
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6228f46a87a5a980ba45d304e90fe7e0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abdaffa9c15517afe6d7ba6488f88f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dccf1f9faac56117d6d3dd1dddd286d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07ad90ca228230b03f12eb48ee0c1d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128596b1fa47e37f7ddd307caf1f2be3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37462b3ca360fb3aa151dbff9a57c91b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45919ba8b183e7d6f5fa017a24512b2b.png)
您最近一年使用:0次
2020-07-22更新
|
552次组卷
|
3卷引用:专题28 证明不等式的常见技巧-学会解题之高三数学万能解题模板【2022版】
(已下线)专题28 证明不等式的常见技巧-学会解题之高三数学万能解题模板【2022版】吉林省梅河口市第五中学2020届高三第七次模拟考试数学(文)试题吉林省通化市梅河口五中2020届高三高考数学(文科)七模试题