题目
题型:解答题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172128-69531.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172128-83177.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172128-90861.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172129-58363.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172129-47370.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172129-16551.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172129-16097.gif)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172129-22493.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172130-32299.gif)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172130-73787.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172130-57959.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172130-47153.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172131-98556.gif)
由
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172131-63678.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172131-38480.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172131-17102.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172131-21384.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172132-21138.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172132-22087.gif)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172132-34184.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172132-65105.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172132-84248.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172133-10062.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172133-30971.gif)
解析
核心考点
试题【(本小题满分12分)已知:、、三点坐标分别为、、,。(1)若,求角;(2)若,求的值。】;主要考察你对任意角三角函数的概念等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172123-66538.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172123-90846.png)
A.![]() | B.![]() | C.![]() | D.![]() |
已知函数
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172112-99786.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172112-38667.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172112-55744.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172112-91298.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172112-58455.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172113-65591.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172113-11900.gif)
(I)求
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172113-56855.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172113-96559.gif)
(II)若
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172113-26482.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172114-97336.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172106-74456.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172015-86868.gif)
(1)求f(x)最小正周期
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822172015-32732.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822171947-49536.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822171948-20147.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822171948-51877.png)
A.![]() | B.![]() | C.![]() | D.![]() |
最新试题
- 1根据上下文,补写一句话。(不超过20字) 翻开《辞海》《辞源》或任何一本工具书,我们会发现,今天的中国人之所以还有词可
- 2【题文】函数定义域为( )A.B.C.D.
- 3我国坚持以公有制为主体,多种所有制共同发展的基本经济制度,具体来说是由①我国现阶段的分配制度决定的 ②我国社会主义国
- 4当x=3,y=2时,代数式的值是[ ]A.B.2C.0D.3
- 5浮萍是一种生活在池塘等水体中的小型植物,仅由几片小叶和须根组成,但它是一种被子植物。由此你能推测它的主要特征吗?
- 6已知A(,),B(,)是函数的图象上的任意两点(可以重合),点M在直线上,且.(1)求+的值及+的值(2)已知,当时,+
- 7英文缩写WTO是指 [ ]A、国际卫生组织 B、世界贸易组织 C、联合国 D、欧洲贸易委员会
- 82009年9月国务院新闻办公室发表《中国的民族政策与各民族共同繁荣发展》白皮书指出,禁止对任何民族的歧视和压迫,禁止破坏
- 9(本题满分分)计算:-4cos30°-(-1)+2-1
- 10元末明初小说《三国演义》深受宋明儒学的影响。下列小说中人物的言论与宋明儒学思想相符的是①张飞:“忠臣宁死而不辱。大丈夫岂
热门考点
- 1据报道,一种名为苹果醋(ACV)的浓缩饮料风靡美国。苹果醋是由苹果发酵而成的酸性饮品,具有解毒、降脂、减肥和止泻等功效。
- 2函数f(x)=x(1-x2)在[0,1]上的最大值为 .
- 3【题文】下列词语中加点的字的读音完全相同的一组是
- 4设函数f(x)=alnx﹣bx2(x>0);(1)若函数f(x)在x=1处与直线相切①求实数a,b的值;②求函数上的最大
- 5等比数列中, 则= ( )A.27B.63C.81D.120
- 6The movie is full of , children are not supposed to
- 7下列哪些现象属于太阳活动对地球的影响?[ ]A、地面无线电长波通讯的短暂中断 B、地球两极地区出现的极昼极夜现象
- 8 结合下面提供的背景资料,为图片拟写解说词。要求至少运用两种修辞手法,能揭示画面的内涵。(不少于50字)
- 9在正方形ABCD中,E为BC的中点,F是CD上一点,且FC=14DC.试说明:AE⊥EF.
- 10---I was wondering whether you could remember the name of th