题目
题型:解答题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145109-55386.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145109-52437.png)
(Ⅰ)若
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145109-52266.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145110-82925.png)
(Ⅱ)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145110-82925.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145110-82065.png)
(2)[ 1 , 2 ]
解析
试题分析:解:(Ⅰ)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145111-73770.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145111-62901.png)
(Ⅱ)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145111-56983.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145111-62335.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145111-70531.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145112-11978.png)
点评:主要是考查了三角函数的化简和性质的运用,属于基础题。
核心考点
试题【已知函数 (Ⅰ)若求函数的值;(Ⅱ)求函数的值域。】;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
①存在实数
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145032-21900.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145032-27247.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145033-77935.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145033-60887.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145033-20419.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145033-97958.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145033-59146.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145034-97181.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145034-27760.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145034-17277.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145034-93849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145034-88832.png)
A.②③④ | B.③⑤⑥ | C.①③⑤ | D.②③⑥ |
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145009-72363.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145010-40507.png)
(1)当
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145010-38719.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145010-91568.png)
(2)如果对于区间
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145010-24075.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145011-42529.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145011-16905.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822145011-35433.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144906-34201.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144858-27590.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144858-57587.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144859-58347.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144859-31355.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144859-22455.png)
(2)令
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144859-57968.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144859-58347.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144859-67991.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144859-23842.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144900-91778.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144900-17173.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144900-81785.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144859-23842.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144900-91778.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144900-91778.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144900-66159.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144810-51871.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144817-82214.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144817-31381.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144817-71316.png)
(Ⅱ)当
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144817-31381.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144817-71316.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190822/20190822144817-52070.png)
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