名校
解题方法
1 . 如图,某城市小区有一个矩形休闲广场,
米,广场的一角是半径为16米的扇形BCE绿化区域,为了使小区居民能够更好的在广场休闲放松,现决定在广场上安置两排休闲椅,其中一排是穿越广场的双人靠背直排椅MN(宽度不计),点M在线段AD上,并且与曲线CE相切;另一排为单人弧形椅沿曲线CN(宽度不计)摆放.已知双人靠背直排椅的造价每米为2a元,单人弧形椅的造价每米为a元,记锐角
,总造价为W元.
的函数
,并写出
的取值范围;
(2)问当AM的长为多少时,能使总造价W最小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4630b9ca3d20635161fa8fbf812b9128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf8bb89ce72c06e5c25338ceeb5bd0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c888f228daca3bdf08a94b57d7b0c59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefd06c239145a2b6ae87a955aa51414.png)
(2)问当AM的长为多少时,能使总造价W最小.
您最近一年使用:0次
2022-09-13更新
|
1179次组卷
|
11卷引用:江苏省连云港市赣榆区2020届高三(6月份)高考数学仿真训练试题
江苏省连云港市赣榆区2020届高三(6月份)高考数学仿真训练试题2017届江苏苏州市高三暑假自主学习测试数学试卷专题17 以三角函数为背景的应用题-《巅峰冲刺2020年高考之二轮专项提升》[江苏](已下线)数学-6月大数据精选模拟卷04(江苏卷)(满分冲刺篇)(已下线)专题17 实际应用问题-2020年高考数学母题题源解密(江苏专版)上海市四校(复兴高级中学、松江二中、奉贤中学、金山中学)2024届高三下学期3月联考数学试卷上海市格致中学2023届高三上学期开学考试数学试题上海市交通大学附属中学2024届高三上学期开学考数学试题上海师范大学附属中学2024届高三上学期9月月考数学试题(已下线)黄金卷08(已下线)上海市四校(复兴高级中学、松江二中、奉贤中学、金山中学)2024届高三下学期3月联考数学试题变式题17-21
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2 . 如图,
三个警亭有直道相通,已知
在
的正北方向6千米处,
在
的正东方向
千米处.
(1)警员甲从
出发,沿
行至点
处,此时
,求
的距离;
(2)警员甲从
出发沿
前往
,警员乙从
出发沿
前往
,两人同时出发,甲的速度为3千米/小时,乙的速度为6千米/小时.两人通过专用对讲机保持联系,乙到达
后原地等待,直到甲到达
时任务结束.若对讲机的有效通话距离不超过9千米,试问两人通过对讲机能保持联系的总时长?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27567d43c5b91382ee3d7ca708ee422.png)
(1)警员甲从
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efa8e51f76f13657040b91c7e117d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
(2)警员甲从
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://img.xkw.com/dksih/QBM/2018/6/1/1958047200518144/1962910174748672/STEM/5c36afb0d45943818b1bc930951fe751.png?resizew=205)
您最近一年使用:0次
2018-06-20更新
|
1963次组卷
|
4卷引用:【全国百强校】江苏省南京师范大学附属中学2018届高三5月模拟考试数学试题
3 . 已知一块半径为
的残缺的半圆形材料
,O为半圆的圆心,
,残缺部分位于过点
的竖直线的右侧.现要在这块材料上截出一个直角三角形,有两种设计方案:如图甲,以
为斜边;如图乙,直角顶点
在线段
上,且另一个顶点
在
上.要使截出的直角三角形的面积最大,应该选择哪一种方案?请说明理由,并求出截得直角三角形面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787ac5e13622afab5e9f8603afe42356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e4fe75a6023a77fc0c9712de23f043.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6967ebd791092c62b4ef97924d91883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://img.xkw.com/dksih/QBM/2018/9/6/2026423620878336/2042102286999552/STEM/d2dcc1813c054e5ba8c2122a298e6202.png?resizew=444)
您最近一年使用:0次
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4 . 为解决城市的拥堵问题,某城市准备对现有的一条穿城公路MON进行分流,已知穿城公路MON自西向东到达城市中心点O后转向东北方向(即
).现准备修建一条城市高架道路L,L在MO上设一出入口A,在ON上设一出入口B.假设高架道路L在AB部分为直线段,且要求市中心O与AB的距离为10km.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/e6485ac8-6fc3-4af9-a307-ecf8f6b59d3f.png?resizew=250)
(1)求两站点A,B之间距离的最小值;
(2)公路MO段上距离市中心O30km处有一古建筑群C,为保护古建筑群,设立一个以C为圆心,5km为半径的圆形保护区.则如何在古建筑群C和市中心O之间设计出入口A,才能使高架道路L及其延伸段不经过保护区(不包括临界状态)?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce9433909d7423bcb7a2a8dbc410790.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/e6485ac8-6fc3-4af9-a307-ecf8f6b59d3f.png?resizew=250)
(1)求两站点A,B之间距离的最小值;
(2)公路MO段上距离市中心O30km处有一古建筑群C,为保护古建筑群,设立一个以C为圆心,5km为半径的圆形保护区.则如何在古建筑群C和市中心O之间设计出入口A,才能使高架道路L及其延伸段不经过保护区(不包括临界状态)?
您最近一年使用:0次
2020-03-29更新
|
755次组卷
|
3卷引用:【校级联考】江苏省南京金陵中学、海安高级中学、南京外国语学校2019届高三第四次模拟考试数学试题
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5 . 如图为某大河的一段支流,岸线
近似满足
∥
宽度为7
圆
为河中的一个半径为2
的小岛,小镇
位于岸线
上,且满足岸线
现计划建造一条自小镇
经小岛
至对岸
的通道
(图中粗线部分折线段,
在
右侧),为保护小岛,
段设计成与圆
相切,设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c05ec87a17d1ea4a24dbc9baecdad328.png)
![](https://img.xkw.com/dksih/QBM/2018/12/10/2093677814841344/2094565760409600/STEM/01e1b656eb894b80adda6a4256fd0685.png?resizew=202)
(1)试将通道
的长
表示成
的函数,并指出其定义域.
(2)求通道
的最短长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c5c9b9f2ab8d03efc969d452907dce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f052d3b8f3d989ebeaee09212f85597.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce89b633e5d6bcf9406e3f9208fe06d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8720f9ef76abdc14777a9843efdb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c05ec87a17d1ea4a24dbc9baecdad328.png)
![](https://img.xkw.com/dksih/QBM/2018/12/10/2093677814841344/2094565760409600/STEM/01e1b656eb894b80adda6a4256fd0685.png?resizew=202)
(1)试将通道
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)求通道
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
您最近一年使用:0次
2018-12-07更新
|
1310次组卷
|
2卷引用:【全国百强校】江苏省清江中学2019届高三第二次教学质量调研数学试题
6 . 南通风筝是江苏传统手工艺品之一.现用一张长2 m,宽1.5 m的长方形牛皮纸ABCD裁剪风筝面,裁剪方法如下:分别在边AB,AD上取点E,F,将三角形AEF沿直线EF翻折到
处,点
落在牛皮纸上,沿
,
裁剪并展开,得到风筝面
,如图1.
(1)若点E恰好与点B重合,且点
在BD上,如图2,求风筝面
的面积;
(2)当风筝面
的面积为
时,求点
到AB距离的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0055d0805e1b26ee7a881e12afc20acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/968b886a9f161fdcab1e08cba8ece5d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71fe246270d1277f9eb2bf15af22e83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f3070b7709c5d7fa08bf02bd93a7090.png)
(1)若点E恰好与点B重合,且点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cba68d4822e0052db07a0e03c055ba5.png)
(2)当风筝面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f3070b7709c5d7fa08bf02bd93a7090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5687831abb14c6f97727b47c9ae8bb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/bb73d2fc-e720-4a07-82ce-3cf4d1cc799f.png?resizew=380)
您最近一年使用:0次
解题方法
7 . 如图,海岸公路MN的北方有一个小岛A(大小忽略不计)盛产海产品,在公路MN的B处有一个海产品集散中心,点C在B的正西方向10
处,
,
,计划开辟一条运输线将小岛的海产品运送到集散中心.现有两种方案:①沿线段AB开辟海上航线:②在海岸公路MN上选一点P建一个码头,先从海上运到码头,再公路MN运送到集散中心.已知海上运输、岸上运输费用分别为400元/
、200元/
.
![](https://img.xkw.com/dksih/QBM/2020/6/27/2493932014567424/2494273713807360/STEM/caf987d30d1c4a86988cb87e06ba429a.png?resizew=231)
(1)求方案①的运输费用;
(2)请确定P点的位置,使得按方案②运送时运输费用最低?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fe30c67ac20cd4e8b9cc2d0d420a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d32a60c6dcca30e0817aaf648b49ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e183031c8ab713cb5b3cb6a97bba6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fe30c67ac20cd4e8b9cc2d0d420a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fe30c67ac20cd4e8b9cc2d0d420a7b.png)
![](https://img.xkw.com/dksih/QBM/2020/6/27/2493932014567424/2494273713807360/STEM/caf987d30d1c4a86988cb87e06ba429a.png?resizew=231)
(1)求方案①的运输费用;
(2)请确定P点的位置,使得按方案②运送时运输费用最低?
您最近一年使用:0次
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8 . 如图,某机械厂欲从
米,
米的矩形铁皮中裁剪出一个四边形
加工成某仪器的零件,裁剪要求如下:点
分别在边
上,且
,
.设
,四边形
的面积为
(单位:平方米).
![](https://img.xkw.com/dksih/QBM/2018/5/27/1954523062763520/null/STEM/14c0686a25fe4d29bf803110cf8d6563.png?resizew=147)
(1)求
关于
的函数关系式,求出定义域;
(2)当
的长为何值时,裁剪出的四边形
的面积最小,并求出最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7fa3aea72ccc36948a4a90f7368f71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86286e339bda533a313a324a18dc7dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b54a965aa682d6d2aa484a43d4941c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b96dce1ec94eb90c243b2eddb78476.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c06c1500e2b0374e6c808c48218038b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0f55810905845995b8d170afc255f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae489c2087983cd2613b8ba84cdf0e34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e966b9520d3afd1b73dfb34a3a14cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b54a965aa682d6d2aa484a43d4941c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15237f6dc3404c89c8731732e9ef49c.png)
![](https://img.xkw.com/dksih/QBM/2018/5/27/1954523062763520/null/STEM/14c0686a25fe4d29bf803110cf8d6563.png?resizew=147)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15237f6dc3404c89c8731732e9ef49c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e901e18f08826aacfc297dd952eee3cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b54a965aa682d6d2aa484a43d4941c91.png)
您最近一年使用:0次
2018-06-05更新
|
910次组卷
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4卷引用:【全国市级联考】江苏省南通市2018届高三最后一卷 --- 备用题数学试题
【全国市级联考】江苏省南通市2018届高三最后一卷 --- 备用题数学试题江苏省赣榆县海头高级中学2017-2018学年高二下学期数学(文)综合练习题(已下线)数学-6月大数据精选模拟卷02(江苏卷)(满分冲刺篇)四川省成都市第七中学2018-2019学年高一下学期期中数学试题
解题方法
9 . 某“
”型水渠南北向宽为
,东西向宽为
,其俯视图如图所示.假设水渠内的水面始终保持水平位置.
(1)过点
的一条直线与水渠的内壁交于
,
两点,且与水渠的一边的夹角为
(
为锐角),将线段
的长度
表示为
的函数;
(2)若从南面漂来一根长度为
的笔直的竹竿(粗细不计),竹竿始终浮于水平面内,且不发生形变,问:这根竹竿能否从拐角处一直漂向东西向的水渠(不会卡住)?试说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7854968bbf6576a1fd9926ee0d4d63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c8f68436b415ef3a4a885bc077ee206.png)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35bb8ca50f11fb7f9c2b96fd42b11a28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ead68be1b467506dcdcd0c90317f44b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)若从南面漂来一根长度为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe35c9c09d1cb7c065df164ae5c62ea0.png)
![](https://img.xkw.com/dksih/QBM/2018/6/8/1963031308115968/1967988343595008/STEM/864a7b6d44ed45a38bd065d6102046f2.png?resizew=294)
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10 . 如图,在矩形纸片
中,
,
,在线段
上取一点
,沿着过
点的直线将矩形右下角折起,使得右下角顶点
恰好落在矩形的左边
边上.设折痕所在直线与
交于
点,记折痕
的长度为
,翻折角
为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/b3169b57-236c-4e48-be43-5cec73510d5c.png?resizew=101)
(1)探求
与
的函数关系,推导出用
表示
的函数表达式;
(2)设
的长为
,求
的取值范围;
(3)确定点
在何处时,翻折后重叠部分的图形面积最小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82cf997be91eba5aa57c308a3461c799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4947cf6f252a84f76ec6d2ee6e1b834e.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/269546b987b40edb492e4ca4d5eee4fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/b3169b57-236c-4e48-be43-5cec73510d5c.png?resizew=101)
(1)探求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19f6c71e82001bb106b6f1389046b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)确定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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