1 . 已知
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c120d95d49ca67fc2a3eec52789244bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ffffc6a41596faebb76f0f6d2af6330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/245cfc93d3da73f5cf8fe810725554fc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 若
是锐角,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f348549da5ee94142fdbda8ed685cc51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
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解题方法
3 . 已知函数
.
(1)求函数
的最小正周期;
(2)若
且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d322eec2c46be157bf409304e9f2d619.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6363449f064b8aeeaa11ae6e096cb25e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c53f153f67f327f16c7ed5cd6fc2d4f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5ff5a2e7663e6a21ccea3149a10113.png)
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4 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90e888ea14da893971e13858945bf0cd.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02eecf6fdb0f429203ee04a96c97495d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90e888ea14da893971e13858945bf0cd.png)
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解题方法
5 . 已知
,
是方程
的两个根,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c8675082698346164ee3869e580a12.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f35152720e43c6403d43bef47c0377d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e9f949abf032483c4088e194bac94d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c8675082698346164ee3869e580a12.png)
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2024高三下·天津·专题练习
名校
解题方法
6 . 在
中,角
、
、
的对边分别为
、
、
,且
,
,
.
(1)求
的面积;
(2)求边
的值和
的值;
(3)求
的值.
![](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/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23725094c363fd158166a8698971694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e39f22a6212855a32f2a59963e4e81.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)求边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c3a427d602000eb60089a6c4b28bcdb.png)
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2024-04-19更新
|
615次组卷
|
4卷引用:广东省汕头市潮阳区河溪中学2023-2024学年高一下学期期中考试数学试题
名校
7 . 已知函数
.
(1)求
图象的对称中心的坐标;
(2)解关于
的不等式
;
(3)设函数
,
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711aeca111ca7c9f81398c7269e91250.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d063fda7431b183acf38a701e0ebe049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcbe8b4bcd32e5a64ebfd873f8cbb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71612b6513583edd911ae153a6d7f9f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10537ef43f84853bf9ebb81a829adf2e.png)
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2024-04-15更新
|
244次组卷
|
2卷引用:辽宁省辽阳市集美中学2023-2024学年高一下学期4月月考数学试题
解题方法
8 . 在
中,
为定值,若
(其中
)的最小值为
,则
的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f12aa4affd4bba5d3d91efc3524edde5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0729e68bda568496b65bbf52649a9675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36b234ba460321e811de1729eadd4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-04-15更新
|
182次组卷
|
2卷引用:河南省部分学校(金科)大联考2023~2024学年高一下学期第一次质量检测数学试题
名校
解题方法
9 . 已知
的内角A,B,C所对的边分别为a,b,c,下列说法中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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2024-04-12更新
|
594次组卷
|
8卷引用:山东省临沂市蒙阴县第一中学2022-2023学年高一下学期第二次月考数学试题
山东省临沂市蒙阴县第一中学2022-2023学年高一下学期第二次月考数学试题(已下线)高一下册数学期末模拟卷(三)-【超级课堂】(已下线)专题6.10 平面向量及其应用全章十二大压轴题型归纳-举一反三系列(已下线)6.4.3 课时3 余弦定理、正弦定理应用举例-同步题型分类归纳讲与练(人教A版2019必修第二册)河北省石家庄一中2023-2024学年高一下学期第一次月考数学试题(已下线)高一下学期第三次月考模拟卷(新题型)--同步题型分类归纳讲与练(人教A版2019必修第二册)安徽省皖北五校联盟2024届高三第二次联考数学试卷山东省日照市五莲县第一中学2024届高三第三次模拟考试数学试题
解题方法
10 . 如果![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75cb7615ca33b128496114742a1f2dd.png)
(1)求证:
;
(2)若
为三角形的三个内角,判断
与
的大小关系,并予以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75cb7615ca33b128496114742a1f2dd.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e10e76a8cf6e3eb92e57ee971a218a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e263f0291e3df8b6fb866abaf3f4576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbeb449ec91ac7e5798e3b347fd0d107.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a25e473dce119ddd92f32fef1dc576.png)
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