1 . 已知:如图,等腰三角形
中,
,
,直线
经过点
(点
、
都在直线
的同侧),
,
,垂足分别为
、
.
(1)求证:
;
(2)请判断
、
、
三条线段之间有怎样的数量关系,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13b505788d3d02bf232ac637fc3a8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e72d26eae9a5470ac982541c609b109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/b7efb7d9-2f61-428f-9220-09f39fa06f0b.png?resizew=172)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33e9e5200fe1aed46fc8dc8fcdd916d5.png)
(2)请判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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2 . 如图,在正方形ABCD中,
.求证:
.
证明:设CE与DF交于点O,
∵四边形ABCD是正方形,
∴
,
.
∴
.
∵
,∴
.
∴
.∴
.
∴
.∴
.
某数学兴趣小组在完成了以上解答后,决定对该问题进一步探究
(1)【问题探究】如图1,在正方形ABCD中,点E、F、G、H分别在线段AB、BC、CD、DA上,且
.试猜想
的值,并证明你的猜想.
(2)【知识迁移】如图2,在矩形ABCD中,
,
,点E、F、G、H分别在线段AB、BC、CD、DA上,且
.则
___________.
(3)【拓展应用】如图3,在四边形ABCD中,
,
,
,点E、F分别在线段AB、AD上,且
.求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783b84ed8d927b77491092f7d2ee2989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf857e03d4320c999d328fd657c2d412.png)
证明:设CE与DF交于点O,
∵四边形ABCD是正方形,
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0973b93383c24af95de98d9cacb2843b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a16dc02090b6e9263555061f14fbc8c.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a0e50d96e967bd909e665070db3d9a4.png)
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783b84ed8d927b77491092f7d2ee2989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8cc88685997c7586d1d4bf75a055433.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37f8d038a3d35e39ece97f530a324b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd478aa6add1eae126321890a34dde15.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5af9ed02d3b811045d61cffd2b2edf1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf857e03d4320c999d328fd657c2d412.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/16/0a9342c1-2813-4c25-97f8-9a0d42f5ddcf.png?resizew=104)
某数学兴趣小组在完成了以上解答后,决定对该问题进一步探究
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/16/7ea22d00-fa1d-497b-9cc6-4c1c55f886d3.png?resizew=418)
(1)【问题探究】如图1,在正方形ABCD中,点E、F、G、H分别在线段AB、BC、CD、DA上,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/846b1b49f05812b0761eb565062d32f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/885a273360456694a3d40a913f3df2fc.png)
(2)【知识迁移】如图2,在矩形ABCD中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa375c3888b332f24e7d0f9b9600c694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/890aea25780f7ba34adb23e799808462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/846b1b49f05812b0761eb565062d32f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d852b8a7e7b287c0bae2ce10d3e6dc1.png)
(3)【拓展应用】如图3,在四边形ABCD中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b377f22aafd3742ad860f77abaacef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b670ec1599330f6af99c600404afcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea624cb140001a7e9d7567903a29521.png)
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解题方法
3 . 把抛物线
沿
轴向下平移得到抛物线
.
(1)当
时,过抛物线
上一点
作切线,交抛物线
于
,
两点,求证:
;
(2)抛物线
上任意一点
向抛物线
作两条切线,从左至右切点分别为
,
.直线
交
从左至右分别为
,
两点.试判断
与
的大小关系,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/471ebe959b8ff2bbabce1f0f09a36e28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27fe004046f183e83376ce219c9d1bb0.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194b8ab194c7d299d5c3e0f09ec18384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2007972af3341f27fbc32ce62dfce5e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/1f30acc34f4ee1077532ae6808af2ab2.png)
(2)抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22962a2ad892cb6b14ab039a06e8cdc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79cc25bc9e9c48fd18a60b95b64bb499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/920ff4e858ac0ed5e5706bb77bfd5c9e.png)
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解题方法
4 . 已知函数
的定义域为
,
,
,且
在区间
上单调递减.
(1)求证:
;
(2)求
的值;
(3)当
时,求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f41c7798e8266916b8501e3837194407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707f481ce3097ef1da3af9964bd36bb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9da1ddf59efd582614505be50e813af1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6bfefa5b41faae17987876d570685d.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5980a054af3e565d5d0511b14695aaf1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e861f148f57d5bcdd82cd1fec3d594.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13a3d8f7ee39ac3245c840a40f8af63d.png)
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2024-01-24更新
|
370次组卷
|
2卷引用:四川省泸州市泸县第四中学2023-2024学年高一下学期开学考试数学试题
名校
5 . 如图,以
为直径的
交
的边
于点
,且
,
为弧
上的一点:
(1)求证:
为
的切线;
(2)连接
,且
,过点
的弦
分别交弦
,直径
于点
,
,若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d2f5572e6f7ab4bee1a669244f13ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/12/7dc45e58-4ecd-45d0-89a0-5f475c7b3b41.png?resizew=175)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a11c1db76cc7e1894f74a50d71736455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/cb6e05d2d5aa09b4d151e704ff87393c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2908a3e03f724d93ada9dce67ae4cf61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2273ae1ee99cec9c1304323bc9ebf75f.png)
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解题方法
6 . 现有如图所示的八面体,八面体的正视图和侧视图如图所示.
(1)证明:
面BEC;
(2)求二面角
的余弦值.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/27/5cad00b9-16a6-4b0d-b442-840de4667213.png?resizew=457)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2b5cfae407016cad45bbdefea05833.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c539709f3b8449ef9cd00a86e194c099.png)
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7 . 清初数学家梅文鼎在著作《平三角举要》中,对南宋数学家秦九韶提出的计算三角形面积的“三斜求积术”给出了一个完整的证明,证明过程中创造性地设计直角三角形,得出了一个结论:如图,
是锐角
的高,则
.当
,
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369ba3cba38acef0f6cda42261b4e8c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36cd446aac9c2e599532e7f00aafb23e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ad4c0ba3a6750537789844d0ec419d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/13/ab9cce87-31d5-477c-9581-a555408df15a.png?resizew=143)
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8 . 某数学兴趣小组运用《几何画板》软件探究
型抛物线图象.发现:如图1所示,该类型图象上任意一点M到定点
的距离
,始终等于它到定直线
上的距离
(该结论不需要证明),他们称:定点F为图象的焦点,定直线l为图象的准线,
叫做抛物线的准线方程.其中原点O为
的中点,
例如,抛物线
,其焦点坐标为
,准线方程为
.其中
.
(1)【基础训练】请分别直接写出抛物线
的焦点坐标和准线l的方程;
(2)【技能训练】如图2所示,已知抛物线
上一点P到准线l的距离为6,求点P的坐标;
(3)【能力提升】如图3所示,已知过抛物线
的焦点F的直线依次交抛物线及准线l于点
,若
求a的值;
(4)【拓展升华】古希腊数学家欧多克索斯在深入研究比例理论时,提出了分线段的“中末比”问题:点C将一条线段
分为两段
和
,使得其中较长一段
是全线段
与另一段
的比例中项,即满足:
,后人把
这个数称为“黄金分割”,把点C称为线段
的黄金分割点.如图4所示,抛物线
的焦点
,准线l与y轴交于点
,E为线段
的黄金分割点,点M为y轴左侧的抛物线上一点.当
时,求出
的面积值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45848d377cad2507fe6846d0882005e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1902e0111df0c03db02b5b44de18d020.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b8aed33984ccc91282d8a1c2be27cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7be4f48d2f5b404bc554ce3ce26f2b8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cf5ffced059f5653ee2a1023518b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4418c0618a712877287ca49a222c07f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83f1f880e5ffbff036953acaca90c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b513c9a9f66302b497b46e5066f3ef03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aafae84e7fe39dc5b694c39405201d32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004cf3e8335136acc770de0c525cae47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5414f69b3282754397a185003db125a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0cfa5ca97d21f418606d449ab48540.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/9/c720cb40-587d-44b2-9b7e-17d573d2f9b8.png?resizew=606)
(1)【基础训练】请分别直接写出抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/108c18cb76d7d34b05c991a644c8b136.png)
(2)【技能训练】如图2所示,已知抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce21531a886c50568b75fd4278f15dcf.png)
(3)【能力提升】如图3所示,已知过抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45848d377cad2507fe6846d0882005e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa1359e6a95a7b27d60eeafd9df9d07.png)
(4)【拓展升华】古希腊数学家欧多克索斯在深入研究比例理论时,提出了分线段的“中末比”问题:点C将一条线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85dfed575260fb066685a46ce7d91f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029d393bb07b7140905b85f550519de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e48f28aeccf369df5980ac787e9e313f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5421a28dc3675ae20190d6090793246e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9dbb54aea6f3f59305b5c679f59bd08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b95463a97c60db3250cb641bf6523d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18ef18bd82c318d5fd8d8b0d2853d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e53c3845e91e9acad98b73fb4adc2d9f.png)
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名校
9 . 设
.
(1)证明:
的图象与直线
有且只有一个横坐标为
的公共点,且
;
(2)求所有的实数
,使得直线
与函数
的图象相切;
(3)设
(其中
由(1)给出),且
,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64263fe2ca48e694c87496d61e63fb9f.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b89cb90d9b60c28b39b9142ea4637f96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8394b1153a174b6e79277de5423a877c.png)
(2)求所有的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af6e6f46dc475ee280de51d98bbb8cc7.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0710b18a65479e71e22a3790829e2d67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a57e060f61f7efa54982bda67db483a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a678bef8f269e87cfa5edc4a298065d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/297d01ec175982de2df74ca170155011.png)
您最近一年使用:0次
2023-09-09更新
|
723次组卷
|
4卷引用:四川省成都市石室中学2023-2024学年高三上学期开学考试文科数学试题
四川省成都市石室中学2023-2024学年高三上学期开学考试文科数学试题四川省成都市石室中学2023-2024学年高三上学期开学考试理科数学试题(已下线)第四章 导数与函数的零点 专题四 导数中隐零点问题 微点4 导数中隐零点问题综合训练上海市行知中学2023-2024学年高三上学期期中考试数学试卷
10 . 如图1,已知直线
与
轴、
轴分别交于点
和点
,过直线
上的两点
、
分别作
轴的垂线段,垂足分别为
和
,其中
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/13/f16f3431-a3e2-4ced-8b88-2cfd4e12e2b3.png?resizew=160)
(1)如果
,
,试判断
的形状;
(2)如果
,(1)中有关
的形状的结论还成立吗?如果成立,请证明;如果不成立,请说明理由;
(3)如图2,题目中的条件不变,如果
,并且
,求经过
、
、
三点的抛物线所对应的函数关系式;
(4)在(3)的条件下,如果抛物线的对称轴
与线段
交于点
,点
是对称轴上一动点,以点
、
、为顶点的三角形和以点
、
、
为顶点的三角形相似,求符合条件的点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32366143230ca122894a4bada7c7b96d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62769b7177ef4bc952dc1dd51d6b510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/883f23ab75b490d6e9e03b8ff8b269c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8610232c77741a37463feba1a66c94.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/13/f16f3431-a3e2-4ced-8b88-2cfd4e12e2b3.png?resizew=160)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/13/e63119b9-475c-42d8-8666-4a9264cebca0.png?resizew=207)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdbf6506e9de40da0f3c51b81b35a901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c917789152df136cdb602798af7aeb39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
(3)如图2,题目中的条件不变,如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c917789152df136cdb602798af7aeb39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa3c50b0c0f6987d2eebfe5f8829d3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(4)在(3)的条件下,如果抛物线的对称轴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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