解题方法
1 . 已知
是圆心为O,半径为R的圆的内接三角形,M是圆O上一点,G是
的重心.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc1aaecdd41b343bc67d6871b1b81e2.png)
___________ .
![](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/5e3fa7e8f8cdaebed54846d7c6c9634c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc1aaecdd41b343bc67d6871b1b81e2.png)
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2 . 已知平面四边形
,
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0c46783b77cce2bd4b45b9acc61884.png)
______ ;动点
,
分别在线段
,
上,且
,
,则
的取值范围为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfc1f76257275ab4b04f9bc913535670.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9633909058247a8aba7d17ae126d825e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0c46783b77cce2bd4b45b9acc61884.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/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34e6e119b3d828c7246f909ec4e9810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5f7c7dac2d664f3f6b5deed1f95924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7173b357dec0dca7d6da123345089741.png)
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3 . 如图,在等腰直角
中,
,
为
的中点,将线段
绕点
旋转得到线段
.设
为线段
上的点,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d0968ff6799eafbc028a273b51aad3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d405c7e1ed6ddac33126b8c1cb511b6.png)
![](https://img.xkw.com/dksih/QBM/2022/5/23/2985564914434048/2991136340885504/STEM/56657029-3c72-4674-9ef3-2c77ae613742.png?resizew=210)
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4 . 如图直角梯形ABCD中,EF是CD边上长为6 的可移动的线段,
,
,
,则
的取值范围为 ________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/575bf0ff60cb0afcb26a504a9078c028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b939af5ba06e279cce39396aaf0fae06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21a73a304056c14d2dfde205719f0fb2.png)
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2022-05-30更新
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12卷引用:湖北省仙桃中学2022届高三下学期第四次半月考数学试题
湖北省仙桃中学2022届高三下学期第四次半月考数学试题(已下线)专题08 平面向量-备战2023年高考数学母题题源解密(全国通用)(已下线)专题18 最全归纳平面向量中的范围与最值问题-3(已下线)专题03 平面向量小题全归类(精讲精练)-2(已下线)技巧02 填空题的答题技巧(精讲精练)-2(已下线)重难点突破03 最全归纳平面向量中的范围与最值问题 (十大题型)-2(已下线)专题11 平面向量小题全归类(练习)(已下线)重难点09 平面向量常考经典压轴小题全归类【九大题型】(已下线)拓展一:平面向量的拓展应用 (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)第05讲 极化恒等式和矩形大法(已下线)微专题05 妙用极化恒等式解决平面向量数量积问题-【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02向量三大定理及最值范围(2) -期末考点大串讲(苏教版(2019))
5 . 在直角
中,
为直角,
,M是
内一点,且
,若
,则
的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfecde52ff2608b64849ec908d9e3e9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c25569b0e6d9746351f57fac965d41d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e4c2d2ef294e9381f0ebaaae7673f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10eaf559bf326fa76fb9edb15dec9bca.png)
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解题方法
6 . 定义两个向量组
的运算
,设
为单位向量,向量组
分别为
的一个排列,则
的最小值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e9f088a93a0c4a2e03f39eb7768bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c958aac15649af743ad29aa837190481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e612e9c0b79ebab77ffba92bb94ddc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e9f088a93a0c4a2e03f39eb7768bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e612e9c0b79ebab77ffba92bb94ddc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b785641e7f29b0990d49c1811ffb765.png)
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7 . 在平面内,定点
,满足
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c2caa17f7e44524a74bd90d5caefd29.png)
__________ ;平面内的动点
满足
,
,则
的最大值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbcb492a5f3fe9651ecf2efd36aa5eef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a39996d20eaef09737952eab634be3ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2f3fc61c6be59729509b71da1b3d12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c2caa17f7e44524a74bd90d5caefd29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffbc423070f5d7ce2c72229066ee1cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b9603b03810c4b388dba92df72cc08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/287ad91a6bf0b9bedd26844bd37f2ed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/738630c28c731cb6d31f9f34da0ebde8.png)
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6卷引用:天津市和平区2022届高三下学期三模数学试题
天津市和平区2022届高三下学期三模数学试题四川省成都市玉林中学2023届高三二诊模拟理科数学试题(二)(已下线)题型12 5类平面向量解题技巧(已下线)压轴题06向量、复数压轴题16题型汇总-2(已下线)第02练 平面向量的数量积-2022年【暑假分层作业】高一数学(人教A版2019必修第二册)江苏省无锡市四校2022-2023学年高一下学期期中联考数学试题
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解题方法
8 . 在平行四边形
中,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0c46783b77cce2bd4b45b9acc61884.png)
__________ ;点
是线段
上的一个动点,当
最小时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8307474c809f88b298050382981cbcc.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b433f537329f30839569d060c6dee3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0c46783b77cce2bd4b45b9acc61884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a33e5d0dbdd0f15854f0d7dd8b53058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8307474c809f88b298050382981cbcc.png)
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4卷引用:天津市南开中学2022届高三下学期居家5月模拟数学试题
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9 . 已知平面向量
,
满足
,
,则
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/479779070b95c1c2845f0a24dc8d5f17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98a268b99842456d3af045077b88b9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9667f6c0eac65be9c5e10f966af41f.png)
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3卷引用:湖北省2022届高三下学期5月联考数学试题