2024高三下·天津·专题练习
名校
解题方法
1 . 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
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614次组卷
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4卷引用:信息必刷卷05(天津专用)
名校
2 . 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
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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
3 . 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
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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
解题方法
4 . 在
中,角
的对边分别为
,已知
.
(1)求角
;
(2)若
,求
的值;
(3)若
为
的中点,且
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0326bdd06bc1bb8de4a1602a9a407fa9.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/537411780cab7fd6dbfc61abc63190d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f10eef977a28e64d88eab07c862021.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b65a1a90a6d2c1e89fe1647e60751e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b77f1b9b728f39d0d9618504567eeb96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
解题方法
5 . 已知
为锐角,且
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71866ae86b9166e55828a3e2dad67a46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f35152720e43c6403d43bef47c0377d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-04-13更新
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1153次组卷
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3卷引用:吉林省吉林地区普通高中2024届高三第三次模拟考试数学试题
名校
解题方法
6 . 已知
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7223bf3fdadd6f44abce82899bc1ec1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/314f80586bc16de221583ca23b935cf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0808576eec606b1745169959d73689.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-04-13更新
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438次组卷
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3卷引用:2024届山西省平遥县第二中学校高三冲刺调研押题卷数学(三)
名校
解题方法
7 . 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
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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安徽省皖北五校联盟2024届高三第二次联考数学试卷(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)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
8 . 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)
您最近一年使用:0次
解题方法
9 . 若
,
,则
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9755b2cc2ee84fed4574638f4e77382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbb434215e12374639453ff88c53f7e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 如图,某商场内有一家半圆形时装店,其平面图如图所示,
是圆心,直径
为24米,
是弧
的中点.一个时装塑料模特
在
上,
.计划在弧
上设置一个收银台
,记
,其中
.
表示
;
(2)当
时,求
的大小;
(3)当
越大时,该店店长在收银台
处的视线范围越大,试问当店长在收银台
处的视线范围最大时,
的长度为多少米?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ae728c7be0f0cf78711f3fa5ccccf30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea7b628bd4ac303c86e30508eb81ff60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa33d0f23b18d580b8b2afb0dfd0c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9e595083e5fd6282c93a636c66680ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7223bf3fdadd6f44abce82899bc1ec1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a6e3d819ca9f73eeb0f872b33c9e5f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3416881a6f67d05fe6b67787047fc86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2bc29145f6e7557711c34b443bd5e84.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2bc29145f6e7557711c34b443bd5e84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2024-04-10更新
|
135次组卷
|
2卷引用:河南省创新发展联盟2023-2024学年高一下学期第一次月考(3月)数学试题