解题方法
1 . 设a为实数,
是以点
为顶点,以点
为焦点的抛物线,
是以点
为圆心、半径为1的圆位于y轴右侧且在直线
下方的部分.
(1)求
与
的方程;
(2)若直线
被
所截得的线段的中点在
上,求a的值;
(3)是否存在a,满足:
在
的上方,且
有两条不同的切线被
所截得的线段长相等?若存在,求出a的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1a9821a00b71f6b7d7a76d91b3f810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302aab606cd719baba3de2574ed69457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d8da179d60dd9ec6ece6de442ae1b06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46111e4d12c21798aa213c0d7804c2ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/6c63e29e-4715-48e2-a049-e517fe67b94c.png?resizew=117)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
(3)是否存在a,满足:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aaafb050b24c4e806c480e0665aaa5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30fc0664cca88dbe6d38f32aee81e6.png)
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2 . 某公园的一个角形区域
如图所示,其中
.现拟用长度为100米的隔离档板(折线
)与部分围墙(折线
)围成一个花卉育苗区
,要求满足
.
(1)设
,试用
表示
;
(2)为使花卉育苗区的面积最大,应如何设计?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed367b88668d973e54bbae632e92c628.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/422210c777ac0d625bbd81cc7601bf9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3711e331195e55e1c0133b0286d61a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce8737bbbe2e8d297a76dcbce42e4a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8e7d2d8fa87698b9e1224448cfc177.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/b962980a-ad93-4e6b-b9bd-f9154ea1af33.png?resizew=161)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5a7b7aac5d4f2e5f0c24eb13cf69bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
(2)为使花卉育苗区的面积最大,应如何设计?请说明理由.
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3 . 在平面直角坐标系
中,对于定点
,记点集
中距离原点O最近的点为点
,此最近距离为
.当点P在曲线
上运动时,关于下列结论:①点
的轨迹是一个圆;②
的取值范围是
.正确的判断是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827539d066d1b78e7ef8bc1569864971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e591c36555576d7c404008333e8e64ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37161fc8c595651c04cd1ea5215ff237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5b55515ce47257e0849b3426ef10ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e68709375ab78a2190d0907a33be85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37161fc8c595651c04cd1ea5215ff237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5b55515ce47257e0849b3426ef10ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e18dde3f360f3d8b0b973f5dee5d085e.png)
A.①成立,②成立 | B.①成立,②不成立 |
C.①不成立,②成立 | D.①不成立,②不成立 |
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2023-12-06更新
|
184次组卷
|
3卷引用:上海市黄浦区2024届高三上学期期中调研测试(一模)数学试题
上海市黄浦区2024届高三上学期期中调研测试(一模)数学试题江西省上饶市婺源天佑中学2023-2024学年高二上学期1月考试数学试题(已下线)第2章 圆锥曲线 (单元重点综合测试)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第一册)
4 . 某城市30天的空气质量指数如下:29,26,28,29,38,29,26,26,40,31,35,44,33,28,80,86,65,53,70,34,36,
,31,38,63,60,56,34,74,34.则这组数据的第75百分位数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6789eb3061247eced0ec7806c9969629.png)
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名校
5 . 在研究函数过程中,经常会週到一类形如
为实常数且
的函数,我们称为一次型分式函数.请根据条件完成下列问题.
(1)设
是实数,函数
,请根据
的不同取值,讨论函数
的奇偶性,并说明理由;
(2)设
是实数,函数
.若
成立的一个充分非必要条件是
,求
的取值范围;
(3)设
是实数,函数
,若存在区间
,使得
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9796db5f297d4023eac8d1aa4739c99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b744e7cd7496125a9bcd6b756d09ebff.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa1944af8ede16275cdcbe721a81870d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8aade587301e484fe76bdf87e6d5b03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0527a896aec4a245945e5edee00deed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d47f8d234c1df11e957b9bd7d3f2da47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe2a076aa933bf55763c67b8734b1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af24aeacd2576456cc192826ecd5b107.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fcc3c97c6d73f7ef44b90ec6f3065ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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名校
6 . 设
是实数,若对任意负数
,代数式
恒为定值,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa696d9c813ba1606c4f6c047dfc6a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
7 . 九章算术是我国古代内容极为丰富的数学名著,斑斓夺目的数学知识中函数尤为耀眼,加上数列知识的加持,犹如锦上添花.下面让我们通过下面这题来体会函数与数列之间的联系.已知
,
.
(1)求函数
的单调区间
(2)若数列
(
为自然底数),
,
,
,
,求使得不等式:
成立的正整数
的取值范围
(3)数列
满足
,
,
.证明:对任意的
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c24b58dc9e82b38b54be9e1e0cbf93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68072473a5106f93e3026d992859f7a1.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f5e599c1b27a08b74ba20788d1891ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292b7800ba829f3f458cd6c23edf68a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f043bbedf5095c1d4478f94e491d0783.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032b1b7450d05f5d5ff2e9df74e3792e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06aaadbbbd40e7259ee76cbfeaebc25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/176c580ac372c687eea2f4dc1eeb1f20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cb342c191aa0c8a897926a001497397.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be0169dbd1fd354ca6cbc2673c7f543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05130dbf9769d55b5ce23fd251c047d1.png)
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8 . 平面两点
,
的坐标分别满足
和
.
为坐标原点,已知
,
且
,
.若存在
,使得
,则正实数
的值为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6f5adf13b4214666292dd64b947741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af405a054bfe7fb7ce40e48d816467e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe91700574eeb6d476da2ee518aaf8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0f7c86a88e29273ba51dc9cb9bd1fa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1af6ac57bed38abc6580e77cc23d474b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c32f820ab76920e200b6018c9e3f98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f995ae49f0bacd78664f5d11ccd42b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df2ee0ecb7d77899d352681febd9c77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e87088da41685cc8d433fbbe0e18d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/249dc5045b2d6d1fc384e80293285df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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9 . 空间中两条异面直线所成角为
,直线与平面所成角为
,若
的取值集合为
,
的取值集合为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
__________
.填“
”、“
.
![](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/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88dbbaafc83b2435ff00756b9e356b06.png)
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10 . 某人准备应聘甲、乙两家公司的高级工程师,两家公司应聘程序都是:应聘者先进行三项专业技能测试,专业技能测试通过后进入面试.已知该应聘者应聘甲公司,每项专业技能测试通过的概率均为,该应聘者应聘乙公司,三项专业技能测试通过的概率依次为
,
,m,其中
,技能测试是否通过相互独立.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dbb910dadef68ff280379c48c43b33e.png)
(2)若甲、乙两家公司的招聘在同一时间进行,该应聘者只能应聘其中一家,若以专业技能测试通过项目数的数学期望为决策依据,该应聘者更有可能通过乙公司的技能测试,求m的取值范围.
您最近一年使用:0次
2023-09-12更新
|
816次组卷
|
4卷引用:上海市大同中学2024届高三上学期开学考数学试题
上海市大同中学2024届高三上学期开学考数学试题吉林省长春博硕学校2023-2024学年高三上学期9月月考数学试题(已下线)考点巩固卷26分布列及三大分布(十一大考点)-1(已下线)第七章 概率初步(续)(知识归纳+题型突破)(2)