解题方法
1 . 已知函数
.
(1)求函数的最小正周期;
(2)在
中,内角B满足
,且
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927785ba550d7ab812dbe769a921873d.png)
(1)求函数的最小正周期;
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5191a4dc89e617343cb13d0b890966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d361dc343243ad575b655fd761021c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2021-05-03更新
|
2361次组卷
|
3卷引用:陕西省宝鸡市2021届高三下学期高考模拟检测(三)文科数学试题
名校
解题方法
2 . 请从下面三个条件中任选一个,补充在下面的横线上,并解答.
①
;②
,i为虚数单位;③△ABC的面积为3
.
在△ABC中,内角A,B,C所对的边分别为a,b,c,已知
,cosA=
,_____.
(1)求a;
(2)求sin(C-
)的值.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ab0187c78c78a2a800db85f965bbf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ead6abba6fb7312d1ba88bee29d427f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b12efb03327f461e868b2ea433f9b0.png)
在△ABC中,内角A,B,C所对的边分别为a,b,c,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9bd61ef23772d4c320d8565be1d0e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602baac86c2b1668ecdfadc8a5948885.png)
(1)求a;
(2)求sin(C-
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
您最近一年使用:0次
2021-08-14更新
|
1120次组卷
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11卷引用:湖南省郴州市2020-2021学年高三上学期第一次教学质量监测数学试题
湖南省郴州市2020-2021学年高三上学期第一次教学质量监测数学试题江苏省南菁、泰兴、常州一中、南京二十九中四校2020-2021学年高三上学期11月联考数学试题湖南省郴州市2021届高三第一次质检数学试题(已下线)热点01 多选题、多空题、多条件解答题-2021年高考数学【热点·重点·难点】专练(新高考)江苏省南京市第二十九中学2020-2021学年高三上学期第二次阶段考试数学试题湖北省鄂东学校2020-2021学年高一5月联考数学试题江苏省无锡市江阴市第一中学2020-2021学年高一下学期5月月考数学试题福建省福州市第十中学等校2020-2021学年高一下学期期中联考数学试题湖北省鄂州市鄂东高级中学2020-2021学年高一下学期5月联考数学试题湖南省邵阳市武冈市第二中学2021-2022学年高二上学期入学考试数学试题江苏省淮安市涟水县第一中学2021-2022学年高一下学期第二次阶段检测数学试题
3 . 设
的内角A,B,C的对边长a,b,c成等比数列,
,延长
至D使
.
(1)求
的大小;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eaa26f34eb2ec5488cef6bd5263d9df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f01c4faacedfe56f5127d6c0cc63cf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f685431e82a93da29b46e72dedbf2eeb.png)
您最近一年使用:0次
名校
解题方法
4 . 在
中,角
、
、
的对边分别为
、
、
,且
与
的等差中项为
.
(1)求
的值;
(2)若
的面积是
,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/29d3a959fc54fe2219b37c73dba209c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6e9923d0ac87e5293bb04b488d7f9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6921d798509f5d0604bc7d38d5bec74.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5201fc26d013f6fb889933c0e32f5c53.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ab49a34b0f12fc7bf186c86a2789ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b89e7ff008dea7530bdc4ea5b6419d.png)
您最近一年使用:0次
5 . 已知
,
,
.
(1)求
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf0b40ab957abd03f1db03ddf71242fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90b548e598b0ccbe781fbb0396347e84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9381a44d11ad720ce8fb72e410a101f7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b023a599ea979d946808f4d1e7b15f5.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf59e16b72d6f3eb3b145890ad367ef.png)
您最近一年使用:0次
名校
6 . 如图所示,在
中,已知
,
,
.
(1)求
的模;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce552d6e4e8bca4d93e5cb01d8685600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7afaac7820e0422a64e5704fc9d1b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b2bd04885ab9095eeaa1b61c45443b6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c436b63e793d6d39990341d29cf47f10.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fb00cfce72750f90eb47448105d9faf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4283b6d5514925bff89dd4ec0aa7d1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab330d1c5cfcd5b5f69545340dc0d01.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/16/6c67f1ef-ecc3-478e-b197-a455ba34a325.png?resizew=183)
您最近一年使用:0次
2018-02-01更新
|
1371次组卷
|
6卷引用:江苏省宿迁市2017-2018学年高一上学期期末考试数学试题1
7 . 已知向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f7869262d78070d519a75de1f23f4db.png)
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb43734187fc3ffc135facd1c9517a3.png)
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f7869262d78070d519a75de1f23f4db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/157873a657e8c4049bb4d15b66014de9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad217e26bd3580c35998109de14cef73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb43734187fc3ffc135facd1c9517a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd999f9318fa14305e706b7e98a56f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693ca42a80bd3d661fc5de6b5df2e8a3.png)
(1)求与
的夹角;
(2)若,求实数
的值.
您最近一年使用:0次
13-14高一下·四川资阳·期末
8 . 已知向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f7869262d78070d519a75de1f23f4db.png)
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb43734187fc3ffc135facd1c9517a3.png)
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f7869262d78070d519a75de1f23f4db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/157873a657e8c4049bb4d15b66014de9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad217e26bd3580c35998109de14cef73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb43734187fc3ffc135facd1c9517a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd999f9318fa14305e706b7e98a56f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693ca42a80bd3d661fc5de6b5df2e8a3.png)
(1)求与
的夹角;
(2)若,求实数
的值.
您最近一年使用:0次