已知向量
,且函数
.
(1)求函数
的周期与单调增区间.
(2)若
中,a,b,c分别为角A,B,C对的边,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c96d058a792fa0fb54ecfff11288e21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c25f1d401fe5fd8748bb7c89751493b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95d37b2f8d5da8eaa07442b941017c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8487dc78911cfedad5d0984ae9dfb99d.png)
20-21高一下·四川成都·阶段练习 查看更多[2]
四川省成都市盐道街中学2020-2021学年高一下学期4月月考文科数学试题(已下线)微专题07 三角形中的范围与最值问题(2)-【微专题】2022-2023学年高一数学常考点微专题提分精练(人教A版2019必修第二册)
更新时间:2023-02-28 19:51:39
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相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】在
中,角
所对的边分别为
,已知向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e3da5f61517281415f9db4e4908e505.png)
,且
.
(Ⅰ)求角
的大小;
(Ⅱ)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.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/4e3da5f61517281415f9db4e4908e505.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65031361181ab21b090cf9c35ebfb25f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3a2db98631ff6e7da8f7447798d768.png)
(Ⅰ)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd5b9bbd3d22bd2cef53dd4b9691257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
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解题方法
【推荐2】已知函数
,从条件①、条件②、条件③这三个条件中选择一个作为已知,使函数
存在且唯一确定.
(1)求
的值;
(2)若不等式
在区间
内有解,求
的取值范围.
条件①:
;
条件②:
的图象可由
的图象平移得到;
条件③:
在区间
内无极值点,且
.
注:如果选择的条件不符合要求,得0分;如果选择多个符合要求的条件分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a468856529ad4dc14fe3ea5d5fc5734.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d0cd47609b9d1865dfff4979161cf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2832f82fdeafa819c92ca5c1e74eb5ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adddf2aac7f18a1da24087f80a9d1634.png)
条件②:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ba7d594fa4f3835fe9a352c21fe6ed1.png)
条件③:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e474e41eb2a59bd4cd54f94ceff584a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5aaaf5d3873ee2a0e0dabdbdb352a80.png)
注:如果选择的条件不符合要求,得0分;如果选择多个符合要求的条件分别解答,按第一个解答计分.
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名校
解题方法
【推荐1】在
,
均为锐角的
中,内角
,
,
所对的边分别为
,
,
,
是
的外接圆半径,且
.
(1)求
;
(2)若
,求
的值.
![](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/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/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce08d008b6251278dc282a0767e2df0.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06430886275f5ad62bcda62fce691e99.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3075cc536cb3608f07bab13a1eb6f7e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b246aa3b56becc905d3fb64c6d5ec4a.png)
您最近一年使用:0次
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名校
解题方法
【推荐2】已知
的内角
所对的边分别是
,
.
(1)求角
;
(2)若
外接圆的周长为
,求
周长的取值范围.
![](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/a0d3bbb60f9afedfabd05cc15572f157.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0407e1f5977d2cb46d362e8362c8816f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐1】如图,在
中,
,且
,
交
于点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af00a2603bb1c492527537d60949c76c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/a2418ab5-bce5-42cf-9700-074aabe61b74.png?resizew=231)
(1)求
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2fa9ccbb5775beb7870aa72f8aeb5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd043e9f6c9b9c29d82db162a8619b8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af00a2603bb1c492527537d60949c76c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/a2418ab5-bce5-42cf-9700-074aabe61b74.png?resizew=231)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8f8340f920decb68b1c4a1fa99488c8.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f74298a91b95ddf6a114d281a597d4.png)
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【推荐2】已知向量
,向量
,其中
.
(1)用
表示
;
(2)求
的最值,并求此时
夹角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec0946c2c5ccb02b1c38f998dadafa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2650a7e6e1d506c8d746832c61ef4738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be48cd4158fb76190935ab143de02ba3.png)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a560b8ff794c12dc8d194bcd2e3f3554.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a560b8ff794c12dc8d194bcd2e3f3554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fa2fcefaf3d8868da0cb52877c5247.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
.
(1)求函数
的单调递增区间;
(2)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943bc71ea723af085f7da6ba51aa6f91.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb27b87a8f0a768c94664131a4fdfe3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45fdc0ab6b028012f6ff6a7789324479.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f021a65c471011ee58a992ec8bf79f.png)
您最近一年使用:0次
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【推荐2】已知函数
.
(1)求函数
的单调递增区间;
(2)把
的图象上所有点的横坐标伸长到原来的
倍(纵坐标不变),再把得到的图象向左平移
个单位,得到函数
的图象,求函数
的图象的对称中心坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36dc4029d5cbb2f0c382d43601061e2f.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
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【推荐3】已知函数
(
)的最小正周期为
.
(1)求
的解析式;
(2)求
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30e3e4aa55fec4bfe2d09de19020dd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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