名校
解题方法
1 . 化简求值:
(1)已知
都为锐角,
,求
的值;
(2)
.
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a35d67e136026dfeceed269762ecbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacde1c42151734fdc60f3001b590de.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a98aef09f546782179d211bcd37b1ff0.png)
您最近一年使用:0次
2022-03-06更新
|
499次组卷
|
2卷引用:黑龙江省双鸭山市第一中学2021-2022学年高一上学期期末数学试题
名校
2 . 化简求值:
(1)
;
(2)已知
,求
的值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4b8942a566bdf1b6f9c4475484ff31.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93da422f7193a7e66b7787976a8434f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdf2783807aec6e30b4c3db8fd18e0fb.png)
您最近一年使用:0次
2022-03-17更新
|
594次组卷
|
2卷引用:安徽省淮北一中、安师大附中、铜陵一中、中科大附中四校2021-2022学年高一下学期学业水平调研数学试题
3 . 给出以下条件:①
;②
;③
.请在这三个条件中任选一个,补充在下面的问题中并作答.
问题:在
中,角A,B,C所对的边分别为a,b,c,且__________.
(1)求角B的大小;
(2)已知
,且角A只有一解,求b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6940feefeabe6725c61f13177fb96ad7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf31bfc4f60f6b0da8d8f57f39f2c3c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e719f6a30e8bc743d821655b7a85d0a0.png)
问题:在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)求角B的大小;
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d441ddca6d9972549b35d21082728a.png)
您最近一年使用:0次
4 . 在①
;②
;③
这三个条件中任选一个,补充在下面问题中并作答.
问题:在
中,角
所对的边分别为
,且__________.
(1)求角
的大小;
(2)已知
,且角
有两解,求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b31bde8ba20570cbad8a9791d7b26ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f050126a4f4183a9a4fff66507060d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e562ea1efd8b760dd8f5c269927154b0.png)
问题:在
![](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)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d441ddca6d9972549b35d21082728a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2023-02-22更新
|
2781次组卷
|
6卷引用:山东省潍坊市2023届高三下学期一模数学试题
山东省潍坊市2023届高三下学期一模数学试题(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)专题10解三角形江西省贵溪市实验中学2023届高三第四次月考数学(文)试题(已下线)考点18 解三角形中的范围问题 --2024届高考数学考点总动员【练】(已下线)第六章 平面向量及其应用(知识归纳+题型突破)2-单元速记·巧练(人教A版2019必修第二册)
名校
解题方法
5 . (1)解不等式
.
(2)当
时,不等式
的解集为
,如图,在矩形
中,
,点
为边
上一动点,当
最大时,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d05cc59ead92893905bebeab93101a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d05cc59ead92893905bebeab93101a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26a740f719d0d0c757c33cc56ed44608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34f4ea9203ad9cd37c444cf1867c8746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://img.xkw.com/dksih/QBM/2020/7/25/2513331460653056/2513761861369856/STEM/3c8003f21f7349ed8bba7e5ea059ff3a.png?resizew=288)
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