已知
,
,求:
(1)
的值;
(2)
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0d128592813241dc48115ffb9a7773.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d394016b9fecac73f38cbc4ff18dee2.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3286884de035d8414d3e4f33236b9e1.png)
更新时间:2023-03-12 20:01:03
|
相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】求下列各式的值:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7d4e4a5cce90a282eebd2f2d7f3380.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/720a75a2e058d473de7fcca5e3f0f83e.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca5cf624d54fcc850785ab275b3bdac.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1064e3198a310f74672b7211ba74071.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知函数
.
(1)求函数
在
上的单调递增区间;
(2)若
,
求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a7ac529db355de5d6f84b66ab748dfd.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4814cc69393408433ac56a06c8e86855.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b63a87545fb8a1913ad16e376d42bd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/939c0d371b8aaff1ed6ffbd65de19fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ba9745c01bcc7c3b62a4ee6dd60a3a.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
解题方法
【推荐1】已知
分别为锐角
ABC内角
的对边,
.
(1)证明:
;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31bc9707b25372462b1ae59d3680906f.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cb21ae875f36d52d0b6f82b0201d0e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24b0f9d5d93584d0db003290f642cdcd.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐2】在
中,角A,B,C的对边分别为a,b,c,
.
(1)证明:
.
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/175427cce2f11691bf86e77ee98dd690.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2264c134952d41fb9bcb90e6c72c83.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b850b6c714abe0d117eae47783230b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32e2f2d7147cf1699fbfdef9cf4af74.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
,
,其部分图象如图所示.
![](https://img.xkw.com/dksih/QBM/2020/5/27/2471312238157824/2471867608408064/STEM/edf90f06c8ee4daeb011d3d8cf7e7e7d.png?resizew=233)
(1)求函数
的解析式;
(2)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54bd7979643b5c69fff1d847e7b233ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877c3a5d357fa76a81ce879096e001fa.png)
![](https://img.xkw.com/dksih/QBM/2020/5/27/2471312238157824/2471867608408064/STEM/edf90f06c8ee4daeb011d3d8cf7e7e7d.png?resizew=233)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9e833034792c25135a25f451d6d46e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ec9654fff4a15010f4177088a40c0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96ffe2a488a1a7f561319c8531fb28f1.png)
您最近一年使用:0次