已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf41a93d3b2dca7054b2a253022a6272.png)
(1)化简
并求
的值;
(2)若
是第三象限角,且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf41a93d3b2dca7054b2a253022a6272.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a24db7b363764a69133e94e0c16ae6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fda8d0f624b550e98a82524deb3a646.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
更新时间:2022-01-16 14:43:04
|
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解答题-计算题
|
较易
(0.85)
解题方法
【推荐2】(1)化简:
(
为第二象限角);
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c60f28ca949e46f9f537c9a6786bfc1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e96bd826e187735177986d3ec72e3ce.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐1】已知
.
(1)化简
;
(2)若角
是
的内角,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f3ef99eee29da86e29cb7573089733.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
(2)若角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26690e367c5f2ddfa4883988de9a6236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8d9578c05df6d568cecd9ca999751ea.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐2】已知
,
.
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d59142ab797807e560fe8adf63e6ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d4e4a30f64d8ffccb3fb538ed91b4b.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bba0623ababe6e01e38f15e94bfaeea.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b7639a0efc0fc5cefe87ee9f59266b6.png)
您最近一年使用:0次