名校
解题方法
1 . 已知
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69aca84fbbde185d50148e3d4ebaf591.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcbe8b4bcd32e5a64ebfd873f8cbb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be2e0a0816bc26d430622d24909ef97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bc052a11cf1a01445992672dde2836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d149527e77c0f21f324469646f19085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69aca84fbbde185d50148e3d4ebaf591.png)
您最近一年使用:0次
名校
2 . 方程
在区间
上的解为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b5dd69a61bfbbc43f9823cf505f246.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a987feb9df03831a505b0015fc5536a6.png)
您最近一年使用:0次
2022-12-20更新
|
411次组卷
|
3卷引用:青海省西宁市城西区青海湟川中学2022-2023学年高三上学期一模理科数学试题
解题方法
3 .
中,角A、B、C的对边分别为a、b、c,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/696bf7c8ee1492b2ad2bb74d28ea8d49.png)
(1)若
为锐角三角形,其面积为
,
,求a的值;
(2)若
,求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/696bf7c8ee1492b2ad2bb74d28ea8d49.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb57d84f9bbcb3e30d4ce7e2e1e8604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e00d474fdadbbe13c2c2a33637600173.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354f86b608c5fa3641aff877665a992f.png)
您最近一年使用:0次
2022高三·全国·专题练习
名校
解题方法
4 . 已知
且
,求:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7590f79f83f7c2ec33c8ff4a0b23363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a680f00e9b503b394a194a841ecbd85.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40278d886290941383a75023a36c22b4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/855780eb03b5d940760714e327f3c404.png)
您最近一年使用:0次
22-23高三上·四川·阶段练习
名校
解题方法
5 . 已知
,则
( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/089502f53786d991bbb545c33ad59fdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-10-15更新
|
620次组卷
|
3卷引用:青海省海南藏族自治州高级中学2022-2023学年高三上学期10月月考数学(理)试题
青海省海南藏族自治州高级中学2022-2023学年高三上学期10月月考数学(理)试题(已下线)四川省金太阳大联考2022-2023学年高三上学期10月联考数学(理)试题河南省名校联盟2022-2023学年高三上学期10月联考理科数学试题
名校
解题方法
6 . 已知角
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0a5133b8460df6c46da0e44051e2a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3c5a505df6ff01fbe41b75e58539422.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0e186d2b9e1510c6cb33c1b0a370e2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-09-29更新
|
648次组卷
|
4卷引用:青海省海南藏族自治州高级中学2022-2023学年高三上学期10月月考数学(文)试题
青海省海南藏族自治州高级中学2022-2023学年高三上学期10月月考数学(文)试题湖北省武汉市2022-2023学年高一上学期期末模拟数学试题(三)2023届普通高等学校全国统一模拟招生考试新未来9月联考理科数学试题(已下线)10.2 二倍角的三角函数(分层练习)-2022-2023学年高一数学同步精品课堂(苏教版2019必修第二册)
解题方法
7 . 已知
为钝角,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6162c7dff7bb61b95d2281b54b3e68.png)
___________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b979f86f43886d61f8f244d01296132f.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d3e1db49c0d259c4f4153726f93727a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6162c7dff7bb61b95d2281b54b3e68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b979f86f43886d61f8f244d01296132f.png)
您最近一年使用:0次
2022-06-29更新
|
467次组卷
|
4卷引用:青海省海东市2021-2022学年高一下学期期末考试数学试题
名校
8 . 已知
,且
是第二象限角,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6338c34bbf9bb39b8efd19661b2705b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e976891142f43f8b63cbadf4a040fe.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-06-23更新
|
1479次组卷
|
4卷引用:青海省海东市第一中学2022届高考模拟(一)数学(理)试题
解题方法
9 . 已知
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fcc95cd12c89f7c83b56f89d7ad0257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9fe48d9c2124820b661e389fdb16463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ae5cb0f5d048f7d3db6ab62c37ce1c.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9202c949edce7ce9f7332afc6629cef0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ae5cb0f5d048f7d3db6ab62c37ce1c.png)
您最近一年使用:0次