题目
题型:解答题难度:一般来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140545-60486.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140545-31883.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140545-24753.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140545-87257.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140545-95546.png)
(1)求f(
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140546-43797.png)
(2)写出f(x)在
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140546-57769.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140546-19853.png)
解析
试题分析:(1)根据题意先由数量积和三角函数运算求出
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140545-87257.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140546-66763.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140546-85798.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140545-87257.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140547-36116.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140547-18562.png)
试题解析:(1)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140547-18472.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140547-38884.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140547-26687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140548-83971.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140548-89584.png)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140548-83971.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140548-71697.png)
即
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140548-74587.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140548-42661.png)
核心考点
试题【已知向量(), ,且的周期为.(1)求f()的值;(2)写出f(x)在上的单调递增区间.】;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/20190822/20190822140522-43282.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140523-19375.png)
(1)若函数y=f(sinx+
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140523-17785.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140523-46494.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140523-77942.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140523-52493.png)
(2)当a>2时,求证:f(sin2xlog2sin2x+cos2xlog2cos2x)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140524-79734.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140524-31988.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140450-36869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140450-99115.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140450-62070.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140451-73976.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140451-70204.png)
(1)求角
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140451-94990.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140451-77227.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140451-49397.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140452-48817.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140446-70641.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140446-43953.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140446-76414.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140447-27160.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140428-57120.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140428-99910.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140429-77367.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140309-91418.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140309-80833.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822140309-91418.png)
A.等腰直角三角形 | B.等腰三角形 |
C.直角三角形 | D.等边三角形 |
最新试题
- 1列举中国人民近代化探索的四件大事。(4分)
- 2图为我国旱涝灾害分布示意图,读图分析回答下列各题。(1)我国旱涝灾害分布规律及其原因是_________________
- 3读俄罗斯图,回答下列问题.(1)地形区:A______平原、B______平原、C______高原、D______山地;
- 4小明的爸爸曾是打猎爱好者,虽国家严令禁止私藏枪支,但他还藏着,小明知道了这件事。回答1-2题:1.他的正确做法应是:[
- 5已知x(x﹣1)﹣(x2﹣y)=﹣3,则x2+y2﹣2xy的值是( ).
- 6(26分)1750-1850年是西方文明突飞猛进的重要阶段。阅读材料,回答问题。材料一:1775年北美爆发独立战争,17
- 7在骨的结构中,与骨的长长有关的是( )A.红骨髓B.黄骨髓C.骺端软骨层的细胞D.骨膜内层的成骨细胞
- 8(9分)在学习了细菌和真菌的知识后,某实验小组的同学对洗手前后细菌和真菌数量变化情况产生了浓厚的兴趣。以下是该小组同学的
- 9某人的尿量比正常情况下多数倍,发生病变的部位可能是( )若验尿发现其中有红细胞、蛋白质等,估计病变的部位可能是( )
- 10在一个匀强电场中有a、b两点,相距为d,电场强度为E,把一个电量为q的正电荷由a点移到b点时,克服电场力做功为W,下列说
热门考点
- 1下列解释实验事实的方程式不正确的是( )A.0.1mol/LCH3COOH溶液的pH>1:CH3COOH⇌CH3COO
- 2下列描述与下图所示地区的组合,正确的是[ ]A.“旱地麦浪泛金黄,大地笼罩青纱帐”——①B.“雪山连绵,冰川广布
- 3下列食品的主要成份是淀粉的是( )A.黄豆B.鸡肉C.大米D.青菜
- 4瞧这一家子,他们都喜欢吃什么?请根据他们的自述选出后面问题的正确答案。Maria: I like broccol
- 5QQ是一款流行的互联网即时通讯(聊天)工具,深受网友们的喜爱.从“QQ2004Ⅱbetal”版本开始,QQ推出了“在线时
- 6有研究认为,“达菲”的治疗机理是药物与病毒的一种主要表面酶结合,使其不能离开已被感染的宿主细胞.这里的“酶”应是一种(
- 7如果ma=mb,那么下列等式不一定成立的是[ ]A.ma+l=mb+lB.ma-3=mb-3C.-ma=-mbD
- 8阅读如图所示的程序框图,则输出的S=( )A.45B.35 C.21D.15
- 9把10a2(x+y)2-5a(x+y)3因式分解时,应提取的公因式是( )A.5aB.(x+y)2C.5(x+y)2D
- 10材料一:中国改革开放三十多年来,让世界更多地了解了中国,也让中国更多地了解了世界。在中法文化年,法国的街头出现了中国的京