名校
解题方法
1 . 在
中,内角A,B,C的对边分别为a,b,c,且
.
(1)求角A的大小;
(2)若BC边上的中线
,且
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895530eed6b681eb13f1c14496e56f4c.png)
(1)求角A的大小;
(2)若BC边上的中线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4746df85049d1651d3f6c30212a7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a72335ff513c24f55115bd073ab7c9a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-02-19更新
|
2463次组卷
|
4卷引用:山西省晋城市第一中学校(南岭)2023-2024学年高二上学期开学测试数学试题
解题方法
2 . 锐角
的内角
的对边为
,若
的面积是
,则
的最小值是______ .
![](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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8cc0b4997cae4d8aec791a1d3923314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd1a04784cdcd2349665e89deb8cfcc.png)
您最近一年使用:0次
名校
解题方法
3 . 已知函数
在
上有且只有3个零点,则实数
的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97151cbc319dd101f6a200ffb4612c24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e86210df0de5ad21c1940c195fa4bf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
您最近一年使用:0次
2020-05-20更新
|
1190次组卷
|
2卷引用:山西省运城市高中联合体2019-2020学年高一下学期第一次摸底考试数学试题
名校
4 . 在锐角三角形
中,内角
、
、
的对边分别为
、
、
.若
,且
,则
的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.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/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/458dc69f02fe5a64a3491b662f3d95f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-02-09更新
|
863次组卷
|
2卷引用:山西省晋中市现代双语学校2021-2022学年高一下学期三月份阶段考试数学试题
名校
5 . 现有
个命题
函数
有
个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5349668bc54fe41455a8a8d7bc00f2d7.png)
若
则
中至少有
个为负数.
那么,这
个命题中,真命题的个数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a617a9b648bfb804eb7ac1cf357f8a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b5809eacec472c073dbbc6d98d44c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5349668bc54fe41455a8a8d7bc00f2d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae3c3c8f3d94894cbd783960ca9c8a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4710521f43873cdde6f2b87cbffcd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d10449bc77d692a7270e0f20a68cdf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
那么,这
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-05-09更新
|
1052次组卷
|
2卷引用:山西省临汾一中、忻州一中、长治二中、康杰中学2016-2017学校高二4月联考数学(文)试题
解题方法
6 . 在
中,角
的对边分别为
,已知
,
,
,则
的最大值为_______ .
![](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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02089f34bf261fc52c4845e384684871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/929356af694084bdc77059149f064d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a24a8f5e8fb89381f8add6549170345.png)
您最近一年使用:0次
2016-12-04更新
|
586次组卷
|
3卷引用:2016届山西晋城市高三下学期第二次模拟数学(文)试卷