题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154730-38140.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154730-21031.gif)
(Ⅰ)求实数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154730-86704.gif)
(Ⅱ)若关于
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154731-88300.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154731-94934.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154731-35553.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154731-84100.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154732-84040.gif)
(Ⅱ)实数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154731-84100.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154732-58794.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154732-45190.gif)
∵
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154730-21031.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154732-69999.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154733-17549.gif)
故
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154733-12277.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154732-84040.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154732-84040.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154732-84040.gif)
(Ⅱ)由
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154732-84040.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154733-18482.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154731-94934.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154733-58843.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154733-35582.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154731-94934.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154731-35553.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154734-93094.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154731-35553.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154734-63060.gif)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154734-83693.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154734-69158.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154735-90403.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154735-54174.gif)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154735-46073.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154735-31160.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154735-90403.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154736-87335.gif)
依题意有
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154736-49375.gif)
解得
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154736-64866.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154731-84100.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154732-58794.gif)
核心考点
举一反三
已知
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154600-70198.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154601-67171.gif)
(1)若函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154601-81737.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154601-29966.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154601-45182.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154602-69195.gif)
(2)讨论函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154601-81737.gif)
(3)在(1)的条件下,若对任意
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154602-49655.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154603-63912.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154603-74893.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154552-60941.gif)
(1)讨论函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154553-30821.gif)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154553-91961.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154553-22599.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154553-12521.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154239-18104.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154239-50491.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154136-41124.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154136-70992.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154136-90152.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154137-11244.gif)
设函数
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154029-67396.gif)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154030-35751.gif)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154030-98277.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154030-70946.gif)
求
![](http://img.shitiku.com.cn/uploads/allimg/20191018/20191018154030-45444.gif)
最新试题
- 1下列各组式中是同类项的是( )A.a与-12a2B.x2y3z与-x2y3C.x2与y2D.94yx2与-5x2y
- 2读“等高线地形图”回答.(1)若仅从地形方面考虑,请比较从B点爬到山顶A点省力还是从C点爬到山顶A点省力.简述理由___
- 3近年来有学者认为:“倘使同治光绪年间的改革移到道光咸丰年间,我们的近代化就要比日本早二十年。”这次发生在“同治光绪年间的
- 4已知地球半径为R,地球表面重力加速度为g,万有引力常量为G,现有一质量为m的卫星绕地球做匀速圆周运动,其轨道半径为r,求
- 5下列措施中,不正确的是( )A.对在意外情况下暂时停止呼吸的病人可用人工呼吸对其抢救B.对脑出血、冠心病突发患者要让其
- 6下图示三个神经元及其联系,表示从树突到细胞体再到轴突末梢。下列有关图中兴奋传导的叙述不正确的是[ ]A.刺激②点
- 7已知函数在与时都取得极值.若对,不等式恒成立,则的取值范围是( )A.B.C.D.
- 8—Alice lost her new bike. She was sad. —Let’s go and
- 9天气预报显示:明天福州的降水概率是60%,三明的降水概率是80%,则______的居民出行带雨伞的可能性大.
- 10Death Valley is one of the most famous deserts in the United
热门考点
- 1某程序的框图如图所示,则执行该程序,输出的S=______.
- 2下列,哪项是人类首次证实地球是球体的事件?( )A.麦哲伦环球航行B.人造卫星上天C.郑和下西洋D.人类登上月球
- 3下列现象中,由地球自转产生的是( )A.昼夜长短变化现象B.昼夜更替现象C.四季变化现象D.太阳直射点在南北回归线之间
- 4鸟卵的结构中,最重要的部分[ ]A.卵黄B.卵白C.胚盘D.卵壳
- 5今年1月7日,我国政府部门发布公告,从即日起围绕《国家中长期教育改革和发展规划纲要》制定工作向社会公开征求意见。政府向社
- 6下列有关元素化合物的说法正确的是( )A.将饱和的FeCl3溶液加热至沸腾,出现红褐色液体时,停止加热,制得Fe(OH
- 7晚上,人在马路上走过一盏路灯的过程中,其影子长度的变化情况是[ ]A.先变短后变长B.先变长后变短C.逐渐变短D
- 8已知函数f(x)=1+lnxx (1)求函数f(x)的极值;(2)如果当x≥1时,不等式f(x)≥kx+1恒成立,求实数
- 9在一个阳光充足的日子里,给你一个凸透镜,请你设计一个方案测出它的焦距.(1)所需器材:(2)实验步骤:
- 10热带和南温带之间的纬线是( )A.北回归线B.赤道C.北极圈D.南回归线