已知
是第二象限角,
.
(1)化简
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c096bb201069efae140db6ae5c4b4d18.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ca5c118cc71f5b68a6e4f183154324.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
更新时间:2019-08-13 22:50:22
|
相似题推荐
解答题-计算题
|
较易
(0.85)
名校
解题方法
【推荐1】求值:
(1)求
的值;
(2)已知角
是第二象限角,且
,求
和
的值.
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6feb345e534616b7e76d6bc76d81bb3.png)
(2)已知角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82cb09055e9345471c4b858ec48a59b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd723551cd497633d77e7498eed46ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a27687dd237df1abaaf26993532e82c6.png)
您最近一年使用:0次
解答题-计算题
|
较易
(0.85)
【推荐2】已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1443411c8efb237dcec63a6aaaa60d2f.png)
(1)化简
.
(2)若
,求
的值.
(3)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1443411c8efb237dcec63a6aaaa60d2f.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e2bf2e06cc731e19d1f70cdd5cb1ae3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b24bf1fe0f4a5ab2ed1f36d00e14a82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d34dc9cc44a91037bbc8d51fa4eb6a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a82b453557ba7b64ef58aab5518dba.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】已知角
为
的一个内角,
.
(1)求
的值;
(2)求
的值.
![](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/82eca6d90bcdc42c4ab9b66e716eed36.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cdbf08839726cff51ec387930b47bde.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0cc9d7efb38b73e0a4d597f654a1056.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
解题方法
【推荐2】(1)已知锐角
的终边上一点
的坐标为
,求
;
(2)若
且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cceff0e7d103475c3ba9a2712f373185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b1b22a659d5dd80b05eb1dfdff9afe.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612fd36aeb83099c4644c076db691612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d207f1d1856c3d384c9b3b498d0ce6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f90c4754e6b6fc862d72943fb35569.png)
您最近一年使用:0次