解题方法
1 . 已知函数
与其导函数为
定义域均为
,且
满足
,
,
,给出以下四个命题:
①
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e298fe246eef819dd9b1edabe3bb9cb.png)
③函数
的图象关于直线
对称 ④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf0d337b876fee3527d1f58d062f6505.png)
其中正确命题的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01bea8bf593f594c51fc7cc547482bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf116ecbdb894c1d05d5b3b5203c10a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0082b730e39498e7bc4ae201c0282128.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aae17aeafc0a40b66bf6f65db99c237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e298fe246eef819dd9b1edabe3bb9cb.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829a2e637d559bfae29c1d30c2b50d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf0d337b876fee3527d1f58d062f6505.png)
其中正确命题的个数是( )
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
2014·上海闵行·二模
名校
2 . 对于函数
,有下列4个命题:①任取
,都有
恒成立;②
,对于一切
恒成立;③函数
有3个零点;④对任意
,不等式
恒成立.则其中所有真命题的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9483cdecf2b3ad69dd985b9140154a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5182a8b74c894231021e20380f864fb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59554ee8b854e90a459d27524b5003df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5932ee430d9867cb72cc306b53efd15d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b916c6d3fb2fdc67421489f207c93903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2419b1e277ee683ac59e59289109bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092f763f0747470bfce68e67594a316b.png)
您最近一年使用:0次
2019-12-27更新
|
1184次组卷
|
12卷引用:2015届四川省宜宾市高三第一次诊断考试理科数学试卷
2015届四川省宜宾市高三第一次诊断考试理科数学试卷2015届四川省宜宾市高三第一次诊断考试文科数学试卷四川省成都市第七中学2022届高三下学期三诊模拟考试数学(理)试题(已下线)2014届上海市闵行区高三下学期教育质量调研(二模)文科数学试卷四川省眉山市东坡区眉山北外附属东坡外国语学校2023届高三下学期开学考试理科数学试题2016届江西省临川区一中高三上学期第一次月考理科数学试卷2016届江西省临川区一中高三上学期第一次月考文科数学试卷2017届江西玉山县一中高三上月考二数学(理)试卷(已下线)2018年高考二轮复习测试专项【新课标理科】热点一 分段函数的性质、图象以及应用(已下线)2018年高考二轮复习测试专项【新课标文科】热点一 分段函数的性质、图象以及应用湖北省黄冈市浠水县实验高级中学2019-2020学年高三上学期8月月考数学(理)试题宁夏石嘴山市第三中学2017届高三上学期期末数学(理)试题
名校
3 . 如图,已知
,其内部有一点
满足
,命题
最大值有可能超过36度;命题
若三边长对应分别为
,则
;则正确的选项为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ab71f0f9086d3745abfe4c16a42beff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7010173da53031a6cf71432406fa5e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c96b857cd8c3389b8d06db32431123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a99bb77a5ec8629e26b0329a8a21db2.png)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
4 . 设m是一个非负整数,m的个位数记作
,如
,
,
,称这样的函数为尾数函数.给出下列有关尾数函数的结论:
①
;
②
,若
,都有
;]
③
;
则正确的结论的个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee53de59dde51125e85976f971dc9d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/941e386b4eaab6b92a9ebcc678734896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d798792867f5e328b969a4dfab54fc5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f94a1caa3d9007c8e0b337a27fd856d.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5448c0b24a1be067f25f8b3452c427.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/050f4807b669482d496e6bc086264fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f3f0bf97c664d0bf86d450a0cb9592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/250f7c541bda2a5de97f7925c1d9664c.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b30766b4589c4288fe4193d37a71986f.png)
则正确的结论的个数为
A.3 | B.2 | C.1 | D.0 |
您最近一年使用:0次