解题方法
1 . 如图,在
中,
,若
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89acc82cb747ff57569b0bcaf68f877d.png)
_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3f157aab917082b835f4213ed81a3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32905649969178ac0426c6186627948d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d228c52dc920fd2f0861d4e4d7220ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89acc82cb747ff57569b0bcaf68f877d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/14/491bfd1c-851d-41fc-ac1f-937008314219.png?resizew=179)
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解题方法
2 . 大约在公元222年,赵爽为《周髀算经》一书作序时介绍了“勾股圆方图”,亦称“赵爽弦图”(如图1).某数学兴趣小组类比“赵爽弦图”构造出图2:
为正三角形,
,
,
围成的
也为正三角形.若
为
的中点,①
与
的面积比为___________ ;②设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9e507d3941363e9dbeac8be35134727.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/c1bd98f1-c926-4719-b25c-602039f53dd5.png?resizew=272)
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2023-05-05更新
|
1815次组卷
|
4卷引用:陕西省西安市长安区第一中学2023-2024学年高二上学期假期学情检测(入学考试)数学试题
2022高三·全国·专题练习
名校
解题方法
3 . 设点P在
内且为
的外心,
,如图.若
的面积分别为
,x,y,则
的最大值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab926d89b65f26c12e3da73ef1e5cf68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ed9da649a05e0939b2b81f1e7eeb7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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2022-12-29更新
|
1911次组卷
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5卷引用:湖南师范大学附属中学2023-2024学年高二上学期入学考试数学试题
湖南师范大学附属中学2023-2024学年高二上学期入学考试数学试题(已下线)专题10 平面向量“奔驰定理”(已下线)6.3.1平面向量基本定理(精讲)(1)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)(已下线)微专题03 妙用奔驰定理解决三角形面积比问题-【微专题】2022-2023学年高一数学常考点微专题提分精练(人教A版2019必修第二册)(已下线)专题突破卷15 三角形的“四心”及奔驰定理
名校
解题方法
4 . 在边长为
的等边
中,已知
,点
在线段
上,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12458c7ac78709c2bf5b03c79884e0c0.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6beb4d03e2d713253f868454ed03e9f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/226d343dd87cefa45e47f14603a401e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12458c7ac78709c2bf5b03c79884e0c0.png)
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2022-05-26更新
|
2605次组卷
|
10卷引用:江西省吉水县第二中学2022-2023学年高二上学期开学测试数学试题
江西省吉水县第二中学2022-2023学年高二上学期开学测试数学试题山东省济宁市2022届高三模拟考试(三模)数学试题湖北省黄冈中学2022届高三下学期三模数学试题(已下线)第03讲 平面向量的数量积 (精讲)-2023年高考数学一轮复习讲练测(新教材新高考)(已下线)专题16 平面向量及其应用(针对训练)-2023年高考数学一轮复习精讲精练宝典(新高考专用)(已下线)专题21 平面向量的概念、线性运算及坐标表示-2(已下线)5.1 平面向量的线性运算及基本定理(精练)(基础版) - 1黑龙江省大庆市大庆铁人中学2022-2023学年高三上学期期末数学试题(已下线)第三节 平面向量的数量积及应用(讲)重庆市铜梁一中等三校2024届高三上学期10月联考数学试题
解题方法
5 . 在
中,
是边
的中点,若
,向量
在向量
上的投影向量为______ ,若点
为线段
上的动点,且满足
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da532e98a24d360aa3dca8c9b0bf43ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305d5f36a9fdbc840161b36563923195.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d792a2aa25763e14cc2863be3887000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffefa3b59247c7bce45b563dabdeda6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1adebff9fb726cd58eda1ef994890901.png)
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6 . 在
中,
为
上一点,
,
为
上任一点,
,
,(
,
),若
,则当
取最小值时,四边形
的面积与
的面积之比等于________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e19ca07569f4327f18fecc34a846a42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/581f5f87c18fa7a1c5cce7a848447d7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b5707309fc608f7177724712503dac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8610232c77741a37463feba1a66c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e7bf3be47407d558b4d2f8bb10d259e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172e8fc1228b95ed78f5c2d65af379e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81248468e1a32919d4670392c4600fa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解题方法
7 . 在
中,
,
,
,点
为
的外心,若
,
、
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8c65bea2c80af038768b74250c694e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06fcdec5fda440bbf42cf2472990e1e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01f56a22d95eab351e09da1afb8153bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
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2021-11-05更新
|
850次组卷
|
3卷引用:江苏省盐城市射阳中学2023-2024学年高二上学期学情检测数学试题
江苏省盐城市射阳中学2023-2024学年高二上学期学情检测数学试题湖北省鄂东南省级示范高中教育教学改革联盟学校2021-2022学年高三上学期期中联考数学试题(已下线)专题24 平面向量基本定理的应用方法-备战2022年高考数学之学会解题必备方法技巧规律(全国通用)
名校
8 . 对函数
,设点
、
是图象上的两端点.
为坐标原点,且点
满足
.点
在函数
的图象上,且
(
为实数),则称
的最大值为函数的“高度”,则函数
在区间
上的“高度”为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1c50c59ef963dee371157e15a73bb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05193d9096bd9da9230acc14228aa4e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4920bf4db93b18d4ecfdc05e310dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37eea897aa1b2ceab5ce04cb3b338a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca538a6d20cb578bd6d23ad843d7c32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19ccdd120ad7ba92c148883a4ae4bb32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b33a08aa12bc8a1c671f8cb673ed0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e107a10c2bb9ea2b472ba6700bc54ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59fe36f4cfcd2696bb2a6656906083f2.png)
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9 . 已知
为
的内心,
,且满足
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1371fe98a65d8ebd840c8d98346b6d15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb9914fb59e51bf918fe296650bdce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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2021-09-05更新
|
439次组卷
|
2卷引用:浙江省精诚联盟2021-2022学年高二上学期返校考试数学试题
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解题方法
10 . 如图,
,
,
与
交于
点,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e644f0e5c8ef10c0ee1a3a129714a91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c3a44624234b62bdba8b7e28a39a4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6858549a3eb7349575c9e8e44d281a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
![](https://img.xkw.com/dksih/QBM/2021/8/28/2796010114875392/2796655518244864/STEM/41ce7e8c-4316-478a-bada-489b695fb56c.png?resizew=284)
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