解题方法
1 . 已知
为锐角三角形,
是角
分别所对的边,若
,且
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21440b7af86688c3bc9e3f09b9a2f4dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
2 . 已知
的展开式中.
的系数为80, 则m的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52b24e6cad1644654dc8f62805169b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e9740b5849aef7597df47e9aac7195f.png)
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2024-01-29更新
|
449次组卷
|
3卷引用:专题11 计数原理 (八大题型+过关检测专训)-2023-2024学年高二数学《重难点题型·高分突破》(人教A版2019选择性必修第三册)
(已下线)专题11 计数原理 (八大题型+过关检测专训)-2023-2024学年高二数学《重难点题型·高分突破》(人教A版2019选择性必修第三册)广东省深圳市高级中学2023-2024学年高三上学期第三次诊断测试数学试题山东省烟台市牟平第一中学2023-2024学年高二下学期3月限时练(月考)数学试题
解题方法
3 . 已知
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f4feaa8ba85cbf70fa373332f96353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd8f62e694b97984beaaff44ed55c134.png)
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4 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b824135fb9fc900113a9522691ad0d.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ec42339e9aea85f579d489152953e27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b824135fb9fc900113a9522691ad0d.png)
您最近一年使用:0次
解题方法
5 . 已知定义在
上的奇函数
在区间
上是严格减函数.若对于任意的
,总有
成立,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe86cace140f2c3588ab115837bbfc9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/749caad98740c97935998ea88057136d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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6 . 设
、
为两个随机事件,给出以下命题:
(1)若
、
为互斥事件,且
,
,则
;
(2)若
,
,
,则
、
为相互独立事件;
(3)若
,
,
,则
、
为相互独立事件;
(4)若
,
,
,则
、
为互斥事件;
其中正确命题的个数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e7b8749698633cd49782301cfc2f5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d344fc34d910f3965df31da4d4b7d408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/677ac228b16598815a42812dbdf822ec.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7161327cdbe387412cb84d53ff9d681e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/672d7bc529ccc16996c8c73a47f260d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aed1c8c2d3c89f9be006e0f73b7a54c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7161327cdbe387412cb84d53ff9d681e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/672d7bc529ccc16996c8c73a47f260d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd7a30952e451b004efdd97c216940e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ee035c6c34eef4268a150dab13117e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745870b7a13e889f50ad2ae9a8aa4649.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7161327cdbe387412cb84d53ff9d681e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/672d7bc529ccc16996c8c73a47f260d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d529ce919792f99e3792bb39f3c7dd1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
其中正确命题的个数为
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7 . 化简![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a13bd1975254eacb1c5c6b1f862214.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a13bd1975254eacb1c5c6b1f862214.png)
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8 . 水车又称孔明车,是以水流为动力的机械装置,是我国古老的农业灌溉工具.如图,某水车的半径为4米,圆心
距离水面2米,每分钟逆时针匀速旋转5圈.当水车上点
从水中浮现时(图中点
)开始计时,已知点
距离水面的高度
(米)关于时间
(秒)的函数为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031234fed7c1e7ce28e7dd1342b01e78.png)
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a27b2182708f6c2e295d4f2bf84cb1.png)
________ ;点
第一次到达最高点大约需要________ 秒.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031234fed7c1e7ce28e7dd1342b01e78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13475bcbebd8000293e134a6b9fc8411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a27b2182708f6c2e295d4f2bf84cb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/13/59c0a76f-7172-49eb-991a-934c6e47c7a5.png?resizew=159)
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2024-01-11更新
|
461次组卷
|
5卷引用:高一上学期期末考点大通关真题精选100题(2)-【题型分类归纳】(人教A版2019必修第一册)
(已下线)高一上学期期末考点大通关真题精选100题(2)-【题型分类归纳】(人教A版2019必修第一册)(已下线)1.8 三角函数的简单应用-同步精品课堂(北师大版2019必修第二册)云南省昆明市五华区2023-2024学年高一上学期1月期末质量检测数学试题(已下线)专题05 三角函数3-2024年高一数学寒假作业单元合订本江西省宜春市丰城中学2023-2024学年高一下学期第一次段考(3月)数学试题
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9 . 已知函数
(
),若
在区间
内恰有4个零点和三条对称轴,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5472cddc5a446758ae52fcb1bffeb7a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f897eed68eaf69608ffa4cf9de94a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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2024-01-11更新
|
482次组卷
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2卷引用:安徽省合肥市第一中学2023-2024学年高一上学期素质拓展训练(9)数学试题
10 . 在平面直角坐标系
中,点
,连
,若线段
分别交曲线
于点
(异于点
),若
,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/772e230c06bb4a08780f2d78273f379a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a817cadf8bc4f29fb811c8e3e5a2184.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a817cadf8bc4f29fb811c8e3e5a2184.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92a37e8519ea115c1777d031d9963583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8a4b91763add3ee3a9f0dc1937398d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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