名校
1 . 在锐角
中,内角A,B,C的对边分别为a,b,c,且
,
.
(1)求角
的大小;
(2)若
,
,求c的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08ce80e91fdf435a8e3ec05be990e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a4762c4f8f5d8fcfb28a54e5159d307.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e168d0526b037e91a108cfafb071eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87997b44fdf1a4f5e9a1344c03ab4d82.png)
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2 . 已知函数
.
(1)求
的单调递减区间;
(2)求
在
上的解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a7197f8e15b20da05e76a4f74bc5e9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8b002680c476b8323c4b67e8bc999e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be105f191f7be435e269132e73abff34.png)
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2022-11-04更新
|
779次组卷
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2卷引用:四川省绵阳市2023届高三上学期第一次诊断性考试理科数学试题
3 . 如图,在
中,
,
,点D在线段AB上.
![](https://img.xkw.com/dksih/QBM/2022/4/29/2968697332736000/2972385957240832/STEM/802edbfb-463e-43ee-b007-24bb561dda6d.png?resizew=197)
(1)若
,求CD的长;
(2)若
,
,求AB的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3a059203f65774fd8f321faa9e8041.png)
![](https://img.xkw.com/dksih/QBM/2022/4/29/2968697332736000/2972385957240832/STEM/802edbfb-463e-43ee-b007-24bb561dda6d.png?resizew=197)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685dcd8129c46dffd47e3f4f08b9f299.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50196d293a863fe2f9e46199052ab8c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c497abef7d8e46cb8a92eb43d50b65.png)
您最近一年使用:0次
名校
解题方法
4 . 在
中,内角A,B,C的对边分别为a.b,c,且
.
(1)求角B的大小;
(2)设D为线段AC上一点,
,
,且满足
,求AD的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d0dab12b09e2245a30877ae7b0ba585.png)
(1)求角B的大小;
(2)设D为线段AC上一点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff29971ccc633d89832ffa9bd54afa3.png)
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2022-03-04更新
|
1171次组卷
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3卷引用:四川省泸县第四中学2023届高考适应性考试理科数学试题
名校
解题方法
5 . 设
中角A,B,C的对边分别为a,b,c,
.
(1)若
,
,求b;
(2)若
为锐角三角形,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8c65bea2c80af038768b74250c694e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7fa79a550591eb9e1bd07bced3a08fc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b6ab846d35d5372f9c945d511c6cae.png)
您最近一年使用:0次
2021-05-12更新
|
519次组卷
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3卷引用:四川省达州市2021 届高三二模数学(理)试题
6 . 在
中,角
、
、
所对的边分别为
、
、
.已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ceaa9577b85ac6e16bbe915659254c6.png)
.
(1)求
的值;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/3ceaa9577b85ac6e16bbe915659254c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da263cd968d31dcdd45364ef8de4c7b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c2d770627f29a7c1fa6659ecee13b54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2018-12-31更新
|
833次组卷
|
4卷引用:【市级联考】四川省乐山市2019届高三第一次调查研究考试数学(文)试题