如图所示,某市政府决定在以政府大楼
为中心,正北方向和正东方向的马路为边界的扇形地域内建造一个图书馆.为了充分利用这块土地,并考虑与周边环境协调,设计要求该图书馆底面矩形的四个顶点都要在边界上,图书馆的正面要朝市政府大楼.设扇形的半径
,
,
与
之间的夹角为
.
![](https://img.xkw.com/dksih/QBM/2014/4/23/1571639727800320/1571639733420032/STEM/b59dad04c3e1408ca50c34a64b0b2148.png)
(1)将图书馆底面矩形
的面积
表示成
的函数.
(2)求当
为何值时,矩形
的面积
有最大值?其最大值是多少?(用含R的式子表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2cd419060534fc63a0d5e3ece100940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c9fbf2544f05d653418b6aebb2f9148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ab55147ca5c0f958af43b0637ee31b.png)
![](https://img.xkw.com/dksih/QBM/2014/4/23/1571639727800320/1571639733420032/STEM/b59dad04c3e1408ca50c34a64b0b2148.png)
(1)将图书馆底面矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ab55147ca5c0f958af43b0637ee31b.png)
(2)求当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ab55147ca5c0f958af43b0637ee31b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
13-14高一下·江苏镇江·阶段练习 查看更多[1]
(已下线)2013-2014学年江苏扬中第二高中高一第二学期第一次月考数学试卷
更新时间:2016-12-02 21:32:08
|
相似题推荐
解答题-问答题
|
较难
(0.4)
名校
【推荐1】已知函数
的图象相邻两条对称轴间的距离为
,且过点
.
(1)若函数
是偶函数,求
的最小值;
(2)令
,记函数
在
上的零点从小到大依次为
、
、
、
,求
的值;
(3)设函数
,
,如果对于定义域D内的任意实数
,对于给定的非零常数
,总存在非零常数
,若恒有
成立,则称函数
是
上的
级周期函数,周期为
.是否存在非零实数
,使函数
是
上的周期为
的
级周期函数?请证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3a6f7d56d452d8a45e1ff3136c6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddcfe70fcf6c4adf6fd7b02911c2cd36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d655ee6d4c2285b6f59652360862d2.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0522ef90d8c6cb8b7953fda724f5744c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a771f2e80c8a29ed2ebd76498b0f49.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b68b92048e0821075a7fc96adf9728.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e95ba2619fbee91ab707560adb1e680.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/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf143ca6acd9bafcce6716f4e6f2d9a3.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661249bf6499017f9e5e03db3fcd93d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02cab1add26335b3cb43d5b54c7c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6be4d938899fe55028288a66a42a6aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec9b866a5a62adebf22d727cbe7b7f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐2】如图有一块半径为4,圆心角为
的扇形铁皮
,
是圆弧
上一点(不包括
,
),点
,
分别半径
,
上.
![](https://img.xkw.com/dksih/QBM/2022/1/20/2898374686613504/2901479008509952/STEM/940aafc65ce54a1790a295a7a657262b.png?resizew=136)
(1)若四边形
为矩形,求其面积最大值;
(2)若
和
均为直角三角形,求它们面积之和的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](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/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://img.xkw.com/dksih/QBM/2022/1/20/2898374686613504/2901479008509952/STEM/940aafc65ce54a1790a295a7a657262b.png?resizew=136)
(1)若四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b16c49d16305cf1afacc5a9e2bf7e9a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a163fbf4333651741cec447995092a19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35a9ec7088381262f8ca327bd377660.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
解题方法
【推荐1】已知
为坐标原点,对于函数
,称向量
为函数
的相伴特征向量,同时称函数
为向量
的相伴函数.
(1)设函数
,试求
的相伴特征向量
;
(2)记向量
的相伴函数为
,当
时,求
的值域;
(3)已知
为
的相伴特征向量,
,请问在
的图象上是否存在一点
,使得
.若存在,求出
点坐标;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66655b7a6825b124ce596197bf2aa14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b84dac41f87e939f6cc39f38dc59b78d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36bd5affcb55e254f5f71caf7ff2304b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
(2)记向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffe91c3b3290e5eb048b0028b0a5686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54df369856047a0133a25084ec4285d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff26491b344566f7bb04cbb7deb6baa1.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ef498f2668cdf0631c68fa309d9c5bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/771f16cb4827b8c57a3f5a1d241e8c31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd151d471f492ee2f847401dc5e8900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef1428037efcc8068ecc8b4cd2279568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b929fe0f9c13dd6dfabca91a1a4aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】已知函数
.
(Ⅰ)若点
在角
的终边上,求
的值;(Ⅱ)若
,求
的值域.
![](https://img.xkw.com/dksih/QBM/2014/2/20/1571516845703168/1571516851511296/STEM/881c76214dd4489f94aed1c1a365e1b6.png)
(Ⅰ)若点
![](https://img.xkw.com/dksih/QBM/2014/2/20/1571516845703168/1571516851511296/STEM/558c53990e294bd2b989938d149c75a0.png)
![](https://img.xkw.com/dksih/QBM/2014/2/20/1571516845703168/1571516851511296/STEM/6c4fe98c9079449c84f977458ab9eec2.png)
![](https://img.xkw.com/dksih/QBM/2014/2/20/1571516845703168/1571516851511296/STEM/a190b7d7a0e4460c953a1dbf48df806a.png)
![](https://img.xkw.com/dksih/QBM/2014/2/20/1571516845703168/1571516851511296/STEM/1a399877ca294316b67bf33045c05fe7.png)
![](https://img.xkw.com/dksih/QBM/2014/2/20/1571516845703168/1571516851511296/STEM/62487d30b61e49e09a4a3bc5a9215c9c.png)
您最近一年使用:0次