解题方法
1 . 在
中,角
,
,
的对边为
,
,
,已知
,且
.
(1)若
,求
;
(2)证明:
;
![](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/5a2264c134952d41fb9bcb90e6c72c83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5e009486af263893ca8290be72f258.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd1ebb13cea4b26eb0d58fb84536ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c181f86de3c96a7ef7a1a04c3a438f.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a589cd093278256efdb4b3dc2b1c11.png)
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解题方法
2 . (1)求值![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e33ef4db6dfa8ad68b1ac1bf96fa8c.png)
(2)化简证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e33ef4db6dfa8ad68b1ac1bf96fa8c.png)
(2)化简证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c6690397ca2300febd71dcb5a9a660a.png)
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解题方法
3 . 已知
.
(1)求
的最小正周期和最大值;
(2)在△ABC中,三个内角满足
,角A满足
,
,
ABC的面积为
,求证:
ABC是直角三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58bc170c5789c59678734b9f0a4015d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在△ABC中,三个内角满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f4be76875ce5423010bc9c3c08f544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44578106bc014446efbcb40d91606d77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd434d8cec7ee2ee83186f3232dd872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
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2022-12-08更新
|
278次组卷
|
3卷引用:四川省南江中学2022-2023学年高三上学期12月阶段考试数学(文)试题
四川省南江中学2022-2023学年高三上学期12月阶段考试数学(文)试题四川省南江中学2022-2023学年高三上学期12月阶段考试数学(理)试题(已下线)第六章 平面向量及其应用章末题型大总结 (精讲)(3)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)
名校
4 . 在
中,内角
,
,
的对边分别为
,
,
,且
.
(1)求证:
;
(2)若
,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/356aabe789b34cd069577fda1dc1d903.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92eebd7a8864a7e6f3b3a94a57d30145.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8997c2a86eb89a7ccbd65d7b53f2ba94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424258051d6d5e8733130cc09379c865.png)
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2023-01-10更新
|
311次组卷
|
3卷引用:河南省安阳市殷都区第一高级中学2021-2022学年高一下学期3月月考数学试题
河南省安阳市殷都区第一高级中学2021-2022学年高一下学期3月月考数学试题宁夏六盘山高级中学2023届高三下学期开学测试数学(理)试题(已下线)第六章:平面向量及其应用 重点题型复习(2) - 【题型分类归纳】
解题方法
5 . 在
中,内角A,B,C所对的边分别为a,b,c,且满足
.
(1)证明:
.
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56735696c9d7c8052c0b6a2922ae8ed.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2264c134952d41fb9bcb90e6c72c83.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ec4e7815c0e96282e553a00d038b99.png)
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22-23高三下·上海浦东新·阶段练习
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6 . 设
.
(1)是否存在a使得
为奇函数?说明理由;
(2)当
时,求证:函数
在区间
上是严格增函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08a29a57b1cb1303b12b9d5e6ee9db8f.png)
(1)是否存在a使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1fbe82295863faba6876c7b13d05ddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d01dc2d99655cf7598837cb0886166ed.png)
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解题方法
7 . 求解下列问题:
(1)求证:
;
(2)已知
,求
.
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efa6e7a5ce66991dcca9310935db1de9.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfc12c5a8d98b11d7241ff9a7bf03f91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce859a1f975043e027f271d365c3449.png)
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2023-03-10更新
|
374次组卷
|
2卷引用:湖南省长沙市第一中学2022-2023学年高一下学期第一次阶段性检测数学试题
名校
解题方法
8 . (1)证明:
;
(2)若
,
,其中实数
,
不全为零.
①求
;
②求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fede4c333b02961cce4709facfa6893f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/756e54aea128da691443988955aa41b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43e68ff9b088253c2a462a7ac7f9d8cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbb006ea697b63a914eb487073f0abe1.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3884b343d76a26b4b85b48987d7064.png)
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2023高一·江苏·专题练习
9 . 证明:
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5619dda26453ae114c9a7d38923c9e6e.png)
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