解题方法
1 . 如图,在四棱锥
中,底面
是矩形,侧面
底面
,
是边长为
的等边三角形,点
分别为侧棱
上的动点,记
,则
的最小值的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235d1553f6806c1eee3b17b94d23f0f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e49817548cb45b3d1e58570644c6fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b81c01cc7eda0e228f6e2698a009cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1cf0e03059d771b4148356396a4908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/17/a9da7095-10d3-48db-ba34-2c82bb5d3222.png?resizew=266)
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2 . 设函数
,其中
,若
且图象的两条对称轴间的最近距离是
.若
是
的三个内角,且
,则
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a067e86ae162185a04bdf862b40cd255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f0ab66d196443c8390a7cccc1e198c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd492824debc778732f80ad5fc6ab5d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2013e02e63a7681484b77e88e5ccbf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93a5801e8be81aae66c47cc058fe370c.png)
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2020-05-08更新
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2842次组卷
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8卷引用:四川省成都外国语学校2019-2020学年高一下学期开学考试数学(文)试题
四川省成都外国语学校2019-2020学年高一下学期开学考试数学(文)试题(已下线)第10章 三角恒等变换(基础过关)-2020-2021学年高一数学单元测试定心卷(苏教版2019必修第二册)(已下线)第五章 三角函数(选拔卷)-【单元测试】2021-2022学年高一数学尖子生选拔卷(人教A版2019必修第一册)湖北省武汉市2022-2023学年高一上学期期末模拟数学试题(三)四川省德阳市德阳中学校2022-2023学年高一下学期3月月考数学试题黑龙江省牡丹江市第一高级中学2022-2023学年高一上学期期末数学试题(已下线)专题5.11 三角函数全章综合测试卷(提高篇)-举一反三系列四川省内江市第二中学2023-2024学年高一下学期第一次月考数学试题
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3 . 已知锐角
,其内角分别为
则
的最大值为 _______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a49e31da04245306a0d8a5a6b18c35a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8a271dc9ec8cf04a3fee54db68be76.png)
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4 . 设函数
,
,
,
,
,记
,
.则
,
,
大小关系是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04e15196ce905f578e53b845242ee30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/425c67c8c78ed8a09410355fe08ee85f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51e9f76dd74f65d74b6a522b1acc0018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce6514c0417a06c7de4f2e4e0e94ea17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9d92a698f14e2dc4ae00121cc5988b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b4be88f2d3afb5d1f2264faa24138e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90de8c0588e022b64be34e79244a1889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1ac49b4139636fb1809fe970b23a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1a0fd1ad044a9ecfcba672779bd678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f904e5f274c559bdba741df035ed3461.png)
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