题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154550-76303.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154550-26935.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154550-41983.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154551-89945.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154551-33660.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154551-33660.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154551-13296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154551-71617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154552-66731.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154552-60371.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154553-31253.png)
(Ⅰ)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154552-60371.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154554-19920.png)
(Ⅱ)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154552-60371.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154554-80241.png)
解析
试题分析:(Ⅰ)根据已知条件,需要表示出
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154554-85169.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154555-69238.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154556-72614.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154556-10491.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154557-68359.png)
而
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154558-36674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154559-30974.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154600-81847.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154600-30844.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154601-46878.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154602-87526.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154602-98240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154603-88060.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154604-32290.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154552-60371.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154604-32608.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154606-68050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154606-50098.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154606-22612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154607-93293.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154607-26402.png)
试题解析:(Ⅰ)由已知可得
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154556-72614.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154556-10491.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154557-68359.png)
因为点
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154558-36674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154559-30974.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154600-81847.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154600-30844.png)
由已知
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154601-46878.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154602-87526.png)
所以
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154602-98240.png)
所以
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154603-88060.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154604-32290.png)
(Ⅱ)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154604-32608.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154606-68050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154606-50098.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154606-22612.png)
函数
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154607-26402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154607-39547.png)
![]() | ![]() | 2 | ![]() |
![]() | + | 0 | ![]() |
![]() | ↗ | 极大值 | ↘ |
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154607-93293.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154607-26402.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154531-72113.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154531-40892.png)
①对任意的
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154531-98753.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154532-83157.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154532-14250.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154532-62935.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154532-73296.png)
则称函数
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154531-40892.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154532-26169.png)
下面有三个命题:
(1)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154531-40892.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154532-26169.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154533-74830.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154533-77998.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154532-26169.png)
(3)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154531-40892.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154532-26169.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154533-27926.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154533-40822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154533-41632.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154534-29230.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154522-93398.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154523-43292.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154523-69152.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154523-19459.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154523-80148.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154510-18346.png)
(Ⅰ)当
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154510-82425.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154510-26071.png)
(Ⅱ)当车流密度
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154510-11253.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154511-74051.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154501-77030.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154501-36061.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154501-68663.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154406-31698.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154407-52893.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154406-31698.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154407-22399.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154407-64909.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154407-86141.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154408-18813.png)
![](http://img.shitiku.com.cn/uploads/allimg/20200204/20200204154408-55500.png)
A.![]() | B.![]() | C.![]() | D.![]() |
最新试题
- 1下列能体现全人类公共利益的有[ ]①国际安全②自然环境资源③国际经济④国际文化⑤我国的民族文化A.①②③④B.①
- 2袋子中装有分别标注数字1,2,3,4,5 的小球,现随机取出2个小球,则取出的小球的数字之和为3或6的概率是 (
- 3温家宝总理在北京召开的全国科技大会上发表题为《认真实施科技发展规划纲要,开创我国科技发展的新局面》的重要讲话。讲话指出:
- 4若一个四面体由长度为1,2,3的三种棱所构成,则这样的四面体的个数是( )A.2B.4C.6D.8
- 5伯里克利时代的雅典民主政治达到极盛,城邦政体被称为“男性公民的俱乐部”,这个俱乐部成员包括①将军②议员③陪审员④男性外商
- 6【题文】设函数 ,记则 ( )A.B.C.D.
- 7材料解析题:阅读下列两则材料,回答所给问题材料一:我们现在认定,只有这两位先生可以救治中国政治上、道德上、学术上、思想上
- 8在光滑绝缘的水平面上,有两个相距不太远的带异种电荷的小球被固定,现解除固定将它们由静止释放,此后的一小段时间内,两球间(
- 9【题文】已知函数的零点分别为,,则( )A.B.C.D.
- 10 某农户2009年承包荒山若干亩,投资7800元改造后,种果树2000棵,水果总产量为18000千克,此水果如果在市场上
热门考点
- 1已知F1=i+2j+3k,F2=2i+3j-k,F3=3i-4j+5k,若F1,F2,F3共同作用于一物体上,使物体从点
- 2Mr. Li told us we were going to have a math exam ______ Thur
- 3依次填入下面一段文字横线处的语句,衔接最恰当的一组是((3分)( )①神态端庄,②头梳螺髻,③双耳垂肩,④脸如满
- 4Tom, you ____ leave all your clothes on the floor like this.
- 51961年8月,北方昆曲剧院公演《李慧娘》,受到首都文艺界的广泛赞誉;1963年5月《文汇报》发表文章,公开批判《李慧娘
- 6阅读下面文字,按要求作文。 春节是中华民族最美好的传统佳节。三十夜的年夜饭,大年初一的祝福语,正月十五的闹元宵
- 7The room _____very quiet. The students are playing outside.[
- 8(本小题满分12分)已知双曲线的离心率,其一条准线方程为.(Ⅰ)求双曲线的方程;(Ⅱ)如题20图:设双曲线的左右焦点分别
- 91933年,____________在德国确立了国家元首的绝对权威,他的上台标志着欧洲____________的形成。
- 10阅读青海省的图文资料,回答问题。 中国2010年上海世博会青海馆以“中华水塔·三江源”为主题,展现中华水塔的山水风情与