题目
题型:解答题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092742-21936.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092742-65548.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092742-17500.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092743-68191.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092743-84386.png)
解析
试题分析:已知
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092743-52063.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092742-17500.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092743-46745.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092744-46580.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092744-93868.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092744-20594.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092744-68513.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092744-75287.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092744-33772.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092745-69260.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092745-91704.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092745-65484.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092745-16362.png)
综上可知,实数
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092743-68191.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092743-84386.png)
点评:若
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092742-17500.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092745-75266.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092746-75431.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092746-21812.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092738-50338.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092738-36862.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092735-40538.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092735-77161.png)
A.![]() | B.A∈B | C.![]() | D.A∩B="B" |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092731-88221.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092732-49267.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092732-24164.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092729-85182.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092729-88046.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092729-85790.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092726-20145.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092727-47649.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092727-67614.png)
A.![]() | B.![]() | C.![]() | D.R |
最新试题
- 1已知函数,则取得极值时的x值为 ▲ .
- 2下列事例中,哪个措施的目的是为了减慢蒸发:[ ]A.用电热吹风机吹湿头发 B.把水果用保鲜膜包好再放入冰箱冷藏室
- 3已知集合A={x|y=x. x∈R },B={y|y=x2. x∈R },则A∩B等于______.
- 4在倾角为的足够长的斜面顶端,把一小球以初速度v0水平抛出,小球落在斜面上,当地的重力加速度为g,则下列说法正确的是A.小
- 5与新兴工业相比,传统工业的明显特点是①企业以中小型为主 ②工业集中分布③工业分散布局 ④技术高度集中A.①②B.①③C.
- 6把灯泡L1、L2串联接在电源上,L1两端的电压为U1;若把灯泡L1、L2并联后仍接在同一电源上,L1端的电压为U1",则
- 7若复数满足,则在复平面内对应的点的坐标是( )A.,B.,C.,D.,
- 8下列一组景观图分别是A南京中山陵、B布达拉宫、C庐山三叠泉瀑布、D广西漓江。读图,完成下列问题。(1)旅游资源通常被划分
- 9为求方程的虚根,可以把原方程变形为,由此可得原方程的一个虚根为______
- 1040. —William, what kind of music do you like, rap or jazz? —
热门考点
- 1以下关于微生物代谢的说法不正确的是[ ]A.诱导酶的合成既受基因控制,也需要某些环境因素的诱导B.组成酶一旦合成
- 2如图所示,在倾角为θ的斜面上,放着一个质量为m的光滑小球,小球被竖直的木板挡住,则小球对木板的压力大小为A.B.C.D.
- 3空中某点,将三个相同小球同时以相同的初速度v水平抛出、竖直上抛、竖直下抛,则从抛出到落地,设地面为零势面,忽略空气阻力,
- 4下图是金刚石、石墨、C60的结构示意图.它们的化学性质相似,物理性质却有很大差异,其原因是( )A.构成它们的原子大小
- 52007年1月29日,新华社受权播发《中共中央国务院关于积极发展________扎实推进社会主义新农村建设的若干意见》。
- 6如下图,右边哪一个长方体是由左边的平面图形围成的( )
- 7He turns deaf ear to his parents, many times they have po
- 8关于路程和位移,下列说法正确的是( )A.路程和位移总是相等的B.位移用来描述直线运动,路程用来描述曲线运动C.位移取
- 9地球上温度适宜的主要原因是[ ]A、日地距离适中 B、太阳光照条件稳定 C、比较安全的宇宙环境 D、地球的体积和
- 10My dog likes running _____ me. [ ]A. around with