题目
题型:解答题难度:一般来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074939-38590.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074939-52376.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074939-85693.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074939-94495.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074939-29435.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074940-63536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074940-17209.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074940-54994.png)
(2)实数
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074940-17209.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074940-29243.png)
解析
试题分析:(1)由集合
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074939-38590.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074940-75369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074941-75401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074939-52376.png)
得
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074941-23420.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074941-12683.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074941-62871.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074939-29435.png)
(2)由
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074940-63536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074941-81982.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074942-96010.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074942-81031.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074940-17209.png)
试题解析:(1)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074942-53210.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074940-75369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074941-75401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074941-23420.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074942-48127.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074941-12683.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074941-62871.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074942-48127.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074940-54994.png)
(2)∵
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074940-63536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074941-81982.png)
①当
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074942-96010.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074942-54205.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074943-32300.png)
②当
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074942-81031.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074943-91390.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074943-55075.png)
综上所述:
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074940-17209.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074940-29243.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074935-97384.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074935-98218.png)
A.![]() ![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074932-58684.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074933-65327.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074933-81092.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074929-33633.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074929-26320.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074929-90498.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074930-95177.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074930-35951.png)
A.2 | B.3 | C.4 | D.6 |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074927-95436.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074927-65864.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074923-73610.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074923-80917.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074923-95494.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074923-69686.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074924-13361.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074924-70751.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817074923-69686.png)
最新试题
- 1下列说法正确的是( )A.同一种晶体的熔点和凝固点相同B.晶体熔化过程中,温度保持不变C.冰的温度只要达到0℃,就一定
- 2在音乐会上我们能分辨出唢呐和笙发出的声音,是因为它们的______不同.
- 3在活期储蓄与国债这两种投资对象之间,某投资者如果选择活期储蓄,那么,他看中的是活期储蓄的[ ]A、流动性强B、风
- 4下列词语中,没有错别字的一项是( )(3分)A.寥阔奄奄一息取缔浑身懈数B.馈赠 姗姗来迟玷污顶礼膜拜C.交卸家渝户晓
- 5下列说法中,错误的是( )A.物体经过普通照相机的镜头后在底片上成一个缩小的像B.透镜的光心位于它的主光轴上C.凸透镜
- 6下列选项中符合矛盾普遍性和特殊性辩证关系的有A.牵牛要牵牛鼻子,好钢要用在刀刃上B.从群众中来,到群众中去C.两手
- 7某同学按如图所示的电路图连接电路,并测出路端电压U和电流I的多组数据,做出U-I图象,从U-I图象中可求出电池的电动势E
- 8用NA表示阿伏加德罗常数的值,下列叙述正确的是( )A.0.1molOH-含0.9NA电子B.1.8g重水((12H2
- 9从***开始到胎儿发育成熟所需要的时间大约是( )A.32周B.8周C.38周D.45周
- 10唐朝诗歌发展的四个时期是怎样划分的?各时期的代表诗人及其诗歌特点各是什么?_______________________
热门考点
- 1我们每天都会从食物中吸收大量的葡萄糖,但不是所有人都会得“糖尿病”.是因为人体可以利用下列哪种激素参与血糖的调节?(
- 2如图,多面体ABCDEFG中,AB,AC,AD两两垂直,平面ABC∥平面DEFG,平面BEF∥平面ADGC,AB=AD=
- 3如图所示,直线OAC为某一直流电源的总功率随电流I变化的图线,曲线OBC表示同一直流电源内部的热功率随电流I变化的图线,
- 4一切成功之士都具有自尊自信的心理品质,但同时他们又具有虚心的品格。如:孔子说:“三人行,必有我师”;鲁迅以“孺子牛”自比
- 5—What colour is _____ orange? —It"s _____ orange.[ ]A.
- 6Broken rubber bands and flat tires requiring replacement cou
- 7某班举行以“初中生参加社区公益活动的利与弊”为话题的辩论活动,下面是甲方同学的一段辩词: 初中生参加社区公益
- 8补写出下列名句名篇中的空缺部分。小题1:不愤不启, 。
- 9阅读下面文章,完成下面题目。(11分)马拉利的账单胡国玮 马拉利怀揣一本烫金的《鲁宾逊漂流记》排在长长的队伍里,心跳得
- 10为倡导健康公民参加无偿献血,将每年的______月______日定为“世界献血者日”.