题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012101-93610.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012101-23603.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012101-36342.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012101-18418.gif)
(1)求角
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012102-32950.gif)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012102-16064.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012102-97768.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012102-28297.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012101-93610.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012103-78331.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012103-49453.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012103-74289.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012103-22426.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012101-93610.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012101-18418.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012103-85173.gif)
而
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012104-26672.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012103-74289.gif)
(2)由
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012104-77365.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012104-67222.gif)
而
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012104-50661.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012105-47221.gif)
于是
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012105-26698.gif)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012105-39150.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012105-98707.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012105-96242.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012106-42339.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012103-22426.gif)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012056-72760.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012057-39691.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012057-27886.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012057-28737.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012056-72760.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012051-68605.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012051-84556.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012051-89364.gif)
(1)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012051-66163.gif)
(2)在锐角三角形
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012051-95470.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012052-85962.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012052-22014.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012052-60580.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012052-62207.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012053-15703.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012053-49088.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012053-72759.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012053-63383.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012054-45100.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012052-62207.gif)
A.1200 | B.1350 | C.450 | D.60![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012041-55472.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012041-54274.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012041-28893.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012041-65143.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012042-93110.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012042-29132.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012042-66151.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012042-41807.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012043-29849.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012034-98525.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012035-13603.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012035-70195.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012035-12631.gif)
(Ⅰ)求角B的大小;
(Ⅱ)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012035-80888.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020012035-64878.gif)
最新试题
- 1下列有关遗传物质的叙述不正确的是( )A.基因是决定生物性状的小单位,它排列在染色体上B.每种生物的细胞内部含有
- 2已知:AB是半圆O 的直径,点C在BA的延长线上运动(点C与点A不重合),以OC为直径的半圆M与半圆O交于点D,∠DCB
- 3下列词语中加点的字,读音无误的一组是( )A.字帖(tiè)漩(xuán)涡笨拙(zhuō)戎马倥(kǒng)偬B.
- 4对于函数,下列结论正确的是[ ]A.有最大值而无最小值 B.有最小值而无最大值C.有最大值且有最小值 D.既无最
- 5The famous actress became _____, and couldn"t say a word whe
- 6下列各组物质,不能只用一种试剂鉴别的是( )A.CH4、CH2=CH2、CH3CH=CH2B.CH3CHO、CH3COO
- 7— Have you got any particular plans for the coming holiday?
- 8将下列句子组合成语意连贯、合乎逻辑的一段话,并将序号填入横线处。 书法是易学难精的艺术。作为一门传统艺术,传承是它显著
- 9玉米和菜豆种子萌发过程中子叶的作用分别是______.
- 10在已知三角形内求作内接正方形。
热门考点
- 1当地球公转速度较慢时,我国东部沿海地区盛行季风为A.东北季风B.西南季风C.西北季风D.东南季风
- 2下列句子中,没有语病,句意明确的一项是A.农村改革的成功经验,农村经济发展对城市的要求,为以城市为重点的整个经济体制改革
- 3阅读下面材料,根据要求作文。有这样一则寓言:匆匆赶路的猫头鹰遇到斑鸠。斑鸠问它:“你要到哪儿去?”猫头鹰回答:“我打算搬
- 4为了证明在实验室制备得到的Cl2中会混有HCl,甲同学设计了如下图所示的实验装置,按要求回答下列问题。(1)请根据甲同学
- 5某天,一蔬菜经营户用60元钱从蔬菜批发市场批了西红柿和豆角共40㎏到菜市场去卖,西红柿和豆角这天的批发价与零售价如下表所
- 6—Do you like chatting with your friends on the telephone or
- 7翻译句子小题1:谢谢你带我参观你的学校。 _______________________________________
- 8幂函数y=f(x)的图象经过点(-2,-18),则满足f(x)=27的x的值是( )A.13B.-13C.3D.-3
- 9发现中暑患者后,常常把患者扶到通风处,并在患者身上擦酒精,这里用到的主要物理知识是:(1)___________
- 10如图,F在平行四边形ABCD的边DC的延长线上,连接AF交BC于E,且CE:BE=1:3,若△EFC的面积等于a,求平行