解题方法
1 . 下列化简正确的是( )
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
2 . 已知
.
(1)化简
;
(2)若
,且
.求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fdfc67febd0b259730f938de54e0de.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d6d0c5140078dbfaaadac7dc9fe023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a17491898e262bf44270327387e38ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e1ac68aa01c4bfbeef78b366075ae3.png)
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名校
解题方法
3 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707c5c5ec89dc65a04116d76409de2ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b9c7d47ba87e8a53304e5fffb508c5b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-10-10更新
|
1089次组卷
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4卷引用:辽宁省重点高中沈阳市郊联体2024届高三上学期期中数学试题
4 . 已知函数
.
(1)求
的单调递减区间;
(2)求
图象的对称中心的坐标;
(3)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/553ed71885b276cee96742b1916e938e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a36e4728c1fb2de18f3e388a56e7a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd4d809facb6c5ce594e86fcc1d1a3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
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2024-01-26更新
|
1012次组卷
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3卷引用:新疆兵团地州学校2023-2024学年高一上学期期末联考数学试卷
2023·全国·模拟预测
5 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27aed3a71f0fb8661b19e12f7219d8e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/087288486e3475c4b24d01c0f6fb2935.png)
A.1 | B.-1 | C.![]() | D.![]() |
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名校
解题方法
6 . 已知角
终边上一点
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7932e1cfda958a41ed95e7b0cfbe2672.png)
A.![]() | B.![]() |
C.若![]() ![]() | D.![]() |
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2023-12-18更新
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337次组卷
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2卷引用:河南省湘豫名校2024届高三上学期12月联考数学试题
名校
解题方法
7 . 在
中,角
,
,
的对边分别为
,
,
,向量
,
,且
.
(1)求
的值;
(2)若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceac6cbfebac5928489c85ed7d1783a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a21b8016dc3150ad5556c7112287ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61a9813aa7274632d5ed3516b46e6e66.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e7c12bff76b3a3151dc3e392c60d53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23725094c363fd158166a8698971694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2023-11-16更新
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1648次组卷
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8卷引用:湖南省长沙市雅礼中学2023-2024学年高二上学期期中数学试题
名校
8 . 已知
均为锐角,且
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fee431b71d8e61dde5a34efd85634c5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d75442a901f013aeb5c52a7113ae9b9.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14593b0e397cd43b5a961f1ac497a5b1.png)
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2023-11-16更新
|
568次组卷
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3卷引用:福建省福州超德中学2023-2024学年高二上学期期中考试数学试题
福建省福州超德中学2023-2024学年高二上学期期中考试数学试题上海市建平中学2023-2024学年高二上学期第三次阶段学习评估(12月月考)数学试卷(已下线)专题05 三角函数(5大易错点分析+解题模板+举一反三+易错题通关)
9 . 在
中,a,b,c分别是角A,B,C的对边,且
.
(1)求A;
(2)已知
,___________,计算
的面积.
从①
,②
这两个条件中任选一个,将问题(2)补充完整,并作答.注意,如果选择多个条件分别作答,按第一个解答计分
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a69bf6e0ad016f3782d5df5a4267e550.png)
(1)求A;
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783d6adfa8fb1352679c5185258d842a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
从①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a7faeb387dc9067d533deadd13ac558.png)
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2023-11-02更新
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541次组卷
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2卷引用:云南省昆明市云南师范大学附属中学2023-2024学年高二上学期期中考试数学试题
解题方法
10 . 已知
,
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6834a22cc57e6dc022c74eae7dac76.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a892dbcef7934d97016bb190d94e0bc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c49f1d4e43e034461b72cbb4b15b7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcbe8b4bcd32e5a64ebfd873f8cbb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a42eb1800ada763185e65c8dc72f76a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6834a22cc57e6dc022c74eae7dac76.png)
您最近一年使用:0次