1 . 如图,在平面直角坐标系中,已知抛物线
与
轴分别相交于
,
两点.
(2)点
是第一象限内该抛物线上的动点,过点
作
轴的垂线交
于点
,交
轴于点
.
①求
的最大值;
②若
是
的中点,以点
,
,
为顶点的三角形与
相似,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f18269e4b2c08f69b719c4c7e7d71733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2375a27ead9549550676d4e6a2b47243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f515842db016eaea3d3f1e0e9418aea.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4eef107fa9d4cedabdf5906c627cce5.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eeb42b04db9904ef00c3cecc463409d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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2024-03-22更新
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5卷引用:2024年山东省聊城市茌平区部分学校中考数学一模试题
2 . 二次函数
的图象与
轴交于
两点,与
轴交于点
,点
的坐标为
,点
坐标为
.
(1)求二次函数的表达式;
(2)若当
随x增大而减小,则
取值范围为______;
(3)当
时,二次函数
的最大值为3,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c3a2f5b0702ea9fbb9dc8904579737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0e705301752424a492f6277ed7774e.png)
(1)求二次函数的表达式;
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6dba543053cca44b35f440419327fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32dafa09346e8a6af1e994b8f2d6212b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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3 . 如图,抛物线
与
轴相交于点
,交
轴于点
,点
是线段
上一动点,
轴,交直线
于点
,交抛物线于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/b6bf23a4-125f-4dc2-bf32-40f226ef44d2.png?resizew=177)
(1)求抛物线的函数表达式;
(2)连接
,求四边形
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e59da5115d0dafea24822245f92c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c79f455cbeb1ba9c94c7e1e05e88b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0522607eeb42a499c0f5b040bbdd42e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/b6bf23a4-125f-4dc2-bf32-40f226ef44d2.png?resizew=177)
(1)求抛物线的函数表达式;
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f214157f723f9bfbe4d3589cdcb6a04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9f08a8c44ba20b6e07d830274f68981.png)
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4 . 如图,抛物线
经过
,
,直线
交x轴于点C,P是直线
上方抛物线上的一个动点,
,垂足为点D,
轴,交直线
于点E.
(1)求抛物线所对应的函数表达式;
(2)当
的周长最大时,求点P的坐标及
的周长最大值;
(3)将抛物线
平移.使得新抛物线的顶点为(2)中的P点,M为新抛物线上的点,N为新抛物线对称轴上的点,若以点A,B,M,N为顶点的四边形是平行四边形,请直接写出符合条件的点M的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea44f5aca4d1bb19622ed3e508477d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa2fef5a03ba996a7c24f88fd49294eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545e18836bc7fee22f8f813a6f525d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf0215fcd72572bb524eca8a7fdc3f4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/25/0445f2c5-db31-4905-a094-c7928c4f2b7c.png?resizew=189)
(1)求抛物线所对应的函数表达式;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cff7399ecc698e2fb415147c96d0d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cff7399ecc698e2fb415147c96d0d03.png)
(3)将抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
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名校
5 . 如图,抛物线
与x轴交于A,B两点(A在B的左侧),与y轴交于点N,过A点的直线
与y轴交于点C,与抛物线
的另一个交点为
,已知P点为抛物线
上一动点(不与A、D重合).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/17/58617212-9e51-4e2d-bff8-8267f5b43b8e.png?resizew=168)
(1)求抛物线的解析式;
(2)当点P在直线l上方的抛物线上时,过P点作
轴交直线l于点E,作
轴交直线l于点F,求
的最大值;
(3)设M为直线l上的动点,以
为一边且顶点为N,C,M,P的四边形是平行四边形,求所有符合条件的M点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b940598cf82b4c61b7669a3998ef18c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1611cd585f404173fe8e8cf7e30dfee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b940598cf82b4c61b7669a3998ef18c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5608bc6cb625f6adb5bb335543de682f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b940598cf82b4c61b7669a3998ef18c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/17/58617212-9e51-4e2d-bff8-8267f5b43b8e.png?resizew=168)
(1)求抛物线的解析式;
(2)当点P在直线l上方的抛物线上时,过P点作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b72ec08a413268ce36da3a273c0a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dcab125fb79abb7259e6ee0aae23000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9292a1dc93f6a4ac6966d7ce9f9f2b33.png)
(3)设M为直线l上的动点,以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a3f913906d27cd5ca71e67ab00a6fc.png)
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2024-03-16更新
|
303次组卷
|
11卷引用:山东省德州市宁津县时集镇时集中学2023-2024学年九年级下学期第一次月考数学试题
山东省德州市宁津县时集镇时集中学2023-2024学年九年级下学期第一次月考数学试题2022年湖南省常德市汉寿县初中毕业模拟考试(一)数学试题(已下线)专题22.46 二次函数y=ax2+bx+c(a≠0)中考常考考点专题(一)(基础篇)(专项练习)-2022-2023学年九年级数学上册基础知识专项讲练(人教版)新疆维吾尔自治区乌鲁木齐市第二十九中学2020-2021学年九年级上学期期末数学试题(已下线)专题2.52 二次函数y=ax2+bx+c(a≠0)中考常考考点专题(一)(基础篇)(专项练习)-2022-2023学年九年级数学下册基础知识专项讲练(北师大版)(已下线)专题5.46 二次函数y=ax2+bx+c(a≠0)中考常考考点专题(一)(基础篇)(专项练习)-2022-2023学年九年级数学下册基础知识专项讲练(苏科版)江西省南昌市师大附中滨江校区2023-2024学年九年级上学期开学考试数学试题广东省惠州市惠阳区第四中学2023-2024学年九年级上学期期中数学试题安徽芜湖第二十九中学2023-2024学年九年级期上学期中数学试题2023年内蒙古呼伦贝尔市扎兰屯市中考数学一模模拟试题(已下线)专题13 二次函数与几何综合-2024年中考数学二轮热点题型归纳与变式演练(全国通用)
6 . 如图,抛物线
与y轴交于点
,与x轴交于点A,B,且B点的坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/22c12f12-13ec-4ff3-9273-0a6dbcdf529a.png?resizew=154)
(1)求该抛物线的解析式.
(2)若点P是
上的一动点,过点P作
,交
于E,连接
,求
面积的最大值.
(3)若点D为
的中点,点M是线段
上一点,且
为等腰三角形,求M点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b6d9add089706118dfc04ab716c302c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b5288ad85ce1ff24d0b4053a4869ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c0573e2af8a0dc8c6a1c0af067a324f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/22c12f12-13ec-4ff3-9273-0a6dbcdf529a.png?resizew=154)
(1)求该抛物线的解析式.
(2)若点P是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d60f55c585f1b455027202684b13e7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f944f78358763be992bb3d55fff12f2.png)
(3)若点D为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2472125b18dc5f831b59c0acb0e488f4.png)
您最近一年使用:0次
名校
7 . 疫情期间,按照防疫要求,学生在进校时必须排队接受体温检测.某校统计了学生早晨到校情况,早上
至
之间的十分钟是学生上学的集中时间,规定时间内学生到校的累计人数y(单位:人)随时间x(单位:分钟)的变化情况如图所示,已知这十分钟的变化情况可以看成是二次函数,并在第10分钟累计的学生数达到最多.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/74e10478-ee58-40d9-8790-0365416f7b75.png?resizew=126)
(1)求y关于x的函数表达式.
(2)为了减少排队等候的时间,在学校门口设置了两个智能体温检测点,已知每个检测点每分钟可以检测60人,已知第x分钟学校门口排队人数为z人,求z关于x的表达式,并求出z的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0566dc5f26c9ca4ee85d563f7babe8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc2d8c629d637824e14dc8bbdde933be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/74e10478-ee58-40d9-8790-0365416f7b75.png?resizew=126)
(1)求y关于x的函数表达式.
(2)为了减少排队等候的时间,在学校门口设置了两个智能体温检测点,已知每个检测点每分钟可以检测60人,已知第x分钟学校门口排队人数为z人,求z关于x的表达式,并求出z的最大值.
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8 . 综合与探究
如图,抛物线
与x轴相交于A,B两点,与y轴相交于点C,点B的坐标是
,点C的坐标是
,M是抛物线的顶点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/19/bef50d33-2808-4a09-a506-86830ac597e7.png?resizew=200)
(1)求抛物线的解析式.
(2)P为线段
上的一个动点,过点P作
轴于点D,D点坐标为
,
的面积为S.
①求
的面积S的最大值.
②在
上是否存在点P,使
为直角三角形?如果存在,请直接写出点P的坐标;如果不存在,请说明理由.
如图,抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f33189133d284c9d56d2c1d859ec50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb937e743d4e859ce608bfba979fce35.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/19/bef50d33-2808-4a09-a506-86830ac597e7.png?resizew=200)
(1)求抛物线的解析式.
(2)P为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f00d0ff8dd38da17167cf9b789eec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3726021850f5b937bf61783869b4d68e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177678001b2ccde1db8f57fa5e017002.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177678001b2ccde1db8f57fa5e017002.png)
②在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177678001b2ccde1db8f57fa5e017002.png)
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2024-02-17更新
|
158次组卷
|
4卷引用:山东省济南市长清区2023-2024学年九年级上学期期末数学试题
山东省济南市长清区2023-2024学年九年级上学期期末数学试题山东省东营市广饶县乐安街道乐安中学2023-2024学年九年级下学期3月月考数学试题安徽省滁州市天长市实验中学教育集团2023-2024学年九年级下学期月考数学试题(已下线)专题06 三角形(全等、相似)(2大易错点分析+19个易错点+易错题通关)-备战2024年中考数学考试易错题(江苏专用)
名校
9 . 如图1、二次函数
的图象经过
和
,交y轴于点C,连接
.点D为第一象限抛物线上一动点,过点D分别作x轴和y轴的垂线,交
于点E和点F.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/5/4fce548b-191d-4e2f-8e4f-2222dafbd0c0.png?resizew=329)
(1)求此二次函数的解析式;
(2)求
面积的最大值及此时点D的坐标;
(3)当
面积最大时,在抛物线上是否存在一点M,使
,请求出点M的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0d44326c214c7a5ecc3068a29ec96f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311497849126f1aaf1da0ec75602eabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7291b3d921f595f28960abcdce6dfbed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/5/4fce548b-191d-4e2f-8e4f-2222dafbd0c0.png?resizew=329)
(1)求此二次函数的解析式;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70ea711d6c44aaeebb48f01f3edf2df4.png)
您最近一年使用:0次
10 . 如图,直线
与
轴交于点
,与
轴分别交于点
,二次函数
的图象过
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/b5545e91-0abe-46c6-8a58-f75eacfdf653.png?resizew=159)
(1)求二次函数的表达式;
(2)将抛物线沿
轴向右平移
个单位长度,当
的值为多少时,平移后所得新抛物线与直线
只有一个公共点?
(3)将抛物线沿
轴向左平移
个单位长度,所得新抛物线与原抛物线相交于点
,当点
在第二象限,求
面积的最大值,并求此时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c608def11fa0e2b34f05592ef1d11fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/b5545e91-0abe-46c6-8a58-f75eacfdf653.png?resizew=159)
(1)求二次函数的表达式;
(2)将抛物线沿
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c88dc86ad6c966febbad5cb0657dd649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(3)将抛物线沿
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c88dc86ad6c966febbad5cb0657dd649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次