名校
解题方法
1 . 已知平面向量
与
的夹角为
,若
恒成立,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e163480714acc9dae5005cac65d217d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14dbc242644d37708634ada0942b1463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b1f460f99efaf485ca6378ad726e09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2024-04-29更新
|
312次组卷
|
3卷引用:云南省大理市2023-2024学年高一下学期6月质量检测数学试题
名校
解题方法
2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6db4d7722b60ed3300d38b9d94c0e3d.png)
(1)判断
的奇偶性;
(2)判断函数
的单调性,并用定义证明;
(3)若不等式
在区间
上有解,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6db4d7722b60ed3300d38b9d94c0e3d.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba4bf35801b9ac27d2427eb468db9308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ca5e984d5e14b4be18a5ee99f80a4f.png)
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2024-03-07更新
|
512次组卷
|
2卷引用:云南省昭通市一中教研联盟2023-2024学年高一上学期期末质量检测数学试题(A卷)
名校
解题方法
3 . 已知函数
,若函数
有四个不同的零点
,
,
,
,且
,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233bcab9f8b3bcdd10c5d4828886d4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b946a8ec829a341aa6806a3eb0b9ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365b38a7689a8eede6820cd6f1fe952b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-02-20更新
|
421次组卷
|
2卷引用:云南省昭通市一中教研联盟2023-2024学年高一上学期期末质量检测数学试题(A卷)
名校
解题方法
4 . 若数列
满足
,则称该数列为斐波那契数列.如图1所示的“黄金螺旋线”是根据斐波那契数列画出来的曲线.图中的长方形由以斐波那契数为边长的正方形拼接而成,在每个正方形中作圆心角为
的扇形,连接起来的曲线就是“黄金螺旋线”.记以
为边长的正方形中的扇形面积为
,数列
的前
项和为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5650568544f56d9373b2c459a1ae4ef4.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d54ed259740712db41ed37ed540941f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ff7caec4fdd8fb54a3ffbff9692414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5650568544f56d9373b2c459a1ae4ef4.png)
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2024-02-20更新
|
332次组卷
|
4卷引用:云南省昭通市一中教研联盟2023-2024学年高二上学期期末质量检测数学试题(A卷)
云南省昭通市一中教研联盟2023-2024学年高二上学期期末质量检测数学试题(A卷)云南省红河州弥勒市第一中学2023-2024学年高二下学期期中检测数学试题(已下线)【讲】 专题8 斐波那契数列(已下线)【练】 专题9 与图表有关的数列问题
5 . 已知曲线
、
与直线
交点的横坐标分别为
、
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f6a856692e7e208b4e128d17f40f720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a595f7d9d669eb55c1d186683b71b12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107babba45f110012183dc4dc54490f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
6 . 已知函数
,则函数
的零点个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1739238b698d7501f162cfe163d151b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/695888c064b19157b69dcc2b8aa352d6.png)
A.4 | B.5 | C.6 | D.7 |
您最近一年使用:0次
解题方法
7 . 已知正三棱柱的底面边长为
,高为6,经过上底面棱的中点与下底面的顶点截去该三棱柱的三个角,如图1,得到一个几何体,如图2所示,若所得几何体的六个顶点都在球
的球面上,则球
的体积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 已知抛物线
上的点
到焦点
的距离为
.
(1)求抛物线
的方程;
(2)点
在抛物线上,直线
与抛物线交于
两点(第一象限),过点
作
轴的垂线交于点
,直线
与直线
、
分别交于点
(
为坐标原点),且
,证明:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b01c57952e2e5a6cff630d4d77fefe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c18c261201283d56c071c1c8133dc20d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77397fbf8224ec0ae05cdf385839f70c.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da65eb3ef54e3787fde5820953af511c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be99fa94a1f3e4964fcc13a14fab9ba5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ad4d3b17d04091d6258426f7c42e80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2024-01-26更新
|
217次组卷
|
2卷引用:云南省昆明市盘龙区2023-2024学年高二上学期期末质量检测数学试题
解题方法
9 . 如图,公园要在一块圆心角为
,半径为
的扇形草坪
中修建一个内接矩形文化景观区域
,若
,则文化景观区域
面积的最大值为______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167e6e41ac221847824a72e964f340f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4819c39c281427826e1b3f7a4c2b720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41d3f7d55fcbaebc4e2450ac63a3dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c901bcdfa58f0c68ad0161b0bab269.png)
您最近一年使用:0次
2024-01-26更新
|
301次组卷
|
3卷引用:云南省昆明市盘龙区2023-2024学年高二上学期期末质量检测数学试题
名校
解题方法
10 . 已知
,
(
为自然对数的底数)
,比较
,
,
的大小( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55ecba0e40ef4feede322fc09fc97ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13d3d56a72f49320d7d0be8aa762d8f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa535449dd5d22bdda16b92d0a83187f.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)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-01-22更新
|
469次组卷
|
3卷引用:云南省昆明市禄劝彝族苗族自治县第一中学2023-2024学年高二上学期期末教学测评数学试卷