已知
的三个内角分别为
,
,
,且
.
(1)求
;
(2)已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef8164a2b5460e896f3745b672456b5.png)
,若函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f46a13297035069791fec890b2d7f7b.png)
的定义域为
,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351966ade9ac27408bea8bf2d94cb972.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef8164a2b5460e896f3745b672456b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2af7267fa641fe998666f090bac90f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f46a13297035069791fec890b2d7f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d3815a557f7993524db4169c3ecfa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de0f6d2b676fb885e43df4db0ed66d9.png)
更新时间:2018-07-13 12:00:47
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知函数
在一个周期内的图象如图所示.
(1)求函数的解析式;
(2)求函数的单调递增区间;
(3)当
时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28acac69fd7b7aed9e61b900e5ca6975.png)
(1)求函数的解析式;
(2)求函数的单调递增区间;
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778662c16848db470c6537705b8a839c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/17/05a6b72c-4ffb-422c-9087-1e0f01e5b1d0.png?resizew=215)
您最近一年使用:0次
解答题-证明题
|
适中
(0.64)
【推荐2】在
中
,
为线段
上一点,且
,线段
.
(1)求证:![](https://img.xkw.com/dksih/QBM/2014/1/6/1571461102559232/1571461107916800/STEM/06ca084eb7b447bfa6390822177ed188.png)
(2)若
,
,试求线段
的长.
![](https://img.xkw.com/dksih/QBM/2014/1/6/1571461102559232/1571461107916800/STEM/4f1d077b1c5345018092e23ff5f70e99.png)
![](https://img.xkw.com/dksih/QBM/2014/1/6/1571461102559232/1571461107916800/STEM/8548640891d744cfb94f680c3953d8a9.png)
![](https://img.xkw.com/dksih/QBM/2014/1/6/1571461102559232/1571461107916800/STEM/b9e4fb0d4f7e40bab4881f8e23b98f4e.png)
![](https://img.xkw.com/dksih/QBM/2014/1/6/1571461102559232/1571461107916800/STEM/6ec4097d509f4338af4a877bdd96679b.png)
![](https://img.xkw.com/dksih/QBM/2014/1/6/1571461102559232/1571461107916800/STEM/e0781e8779454c73a3cda04dda6f8f86.png)
![](https://img.xkw.com/dksih/QBM/2014/1/6/1571461102559232/1571461107916800/STEM/0e947d6c48064214880c9a67864c211b.png)
(1)求证:
![](https://img.xkw.com/dksih/QBM/2014/1/6/1571461102559232/1571461107916800/STEM/06ca084eb7b447bfa6390822177ed188.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2014/1/6/1571461102559232/1571461107916800/STEM/ecc4eb19cb354d47b8ae00e5f220b89f.png)
![](https://img.xkw.com/dksih/QBM/2014/1/6/1571461102559232/1571461107916800/STEM/8f98be53bdc74061b1622d395818bfb7.png)
![](https://img.xkw.com/dksih/QBM/2014/1/6/1571461102559232/1571461107916800/STEM/0f49e6a879774ab6ae7ce788cc406379.png)
您最近一年使用:0次