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1 . 已知各项均为正整数的数列
满足:对任意正整数
,均存在
,使得
.若
,则满足条件的数列的个数为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4964def45d13d7eaed0087f8854a7b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b11181ff07dcde545c0541a0d00ec1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6597414bbf121f0a393ad2d0151c598a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520dafa0c218cc4273e39ff68819ead6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ee5d80be0954700cf93effec2967be.png)
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2 . 已知函数
的导函数
的图象如图示,给出如下命题:
①0是函数
的一个极值点;
②当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
③
;
其中正确的命题是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffcbcb7057ea09eefed70ff98e96a44c.png)
①0是函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84bbc62c76daac391ddc4ce2d6078948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56e14b41966ac2731945ea522620eb49.png)
其中正确的命题是
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3 . 下图数阵的每一行最右边数据从上到下形成以1为首项,以2为公比的等比数列,每行的第
个数从上到下形成以
为首项,以3为公比的等比数列,则该数阵第
行
所有数据的和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f1ad18371ec533aeac27cf1fad95c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89ba85f74cda4ddd621278e558bc036f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
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4 . 已知
的展开式中各项系数和为8,则展开式中常数项为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a63c7ac5f14dfdb741d32830292742.png)
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5 . 已知二面角
的大小为60°,点P,Q分别在
,
上且
,若点
到
的距离为
,点
到
的距离为
,则
两点之间的距离为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754bbd99327195520a4ca3ce3b9a0577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b9d83969b6a8e27e57ab71b34e2b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
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6 . 某质点的位移
(单位:
)与时间
(单位:
)满足函数关系式
,则该质点的瞬时速度的最小值为______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d65502a7ea4d1ce6d6d8c720845c73e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c55c6ac7fe1758801b70fa48d7164c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53afeaf21f93091b71608d21540be239.png)
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解题方法
7 . 已知平行四边形
中,
,
,
.若点
满足
,点
为
中点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f33bd925dbc5bda5c705f6a3400c66c.png)
__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00dc923e1b4f6a795bfd70cd698dfdd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7872abd162e356132bb371fc581d818c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c3a1f1a37e69b2dc06bf0affd58f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a06d84898e2aed657ca46546f870c304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f33bd925dbc5bda5c705f6a3400c66c.png)
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8 . 如图,某体育公园广场放置着一块高为3米的大屏幕滚动播放各项体育赛事,大屏幕下端离地面高度3.5米,若小明同学的眼睛离地面高度1.5米,则为了获得最佳视野(最佳视野指看到大屏幕的上下夹角最大),小明应在距离大屏幕所在的平面_________ 米处观看?(精确到0.1米).
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解题方法
9 . 已知
分别为椭圆
的上、下焦点,
,直线
经过点
且与
交于
两点,若
垂直平分线段
,则
的周长为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a07cc1d479be78184553c037feb4d795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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今日更新
|
59次组卷
|
2卷引用:江西省多校联考2023-2024学年高二下学期6月摸底考试数学试题
10 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dbd9ff686703cad03aa383e5fec21.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2be5acfcb74659c7b97c011e0e6ffbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dbd9ff686703cad03aa383e5fec21.png)
您最近一年使用:0次
今日更新
|
203次组卷
|
2卷引用:江西省多校联考2023-2024学年高二下学期6月摸底考试数学试题