名校
解题方法
1 . 已知点O是
内部一点,并且满足
,
的面积为
,
的面积为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a39f04d1c3551403dbbed35deb01232.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d447e95c477104f987f259859896d54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bbf9680f74a9ac5d934304654ce2771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7ffcd1925a2b1259221c6a476152f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a39f04d1c3551403dbbed35deb01232.png)
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名校
解题方法
2 . 圆
是锐角
的外接圆,
,则
的取值范围是______ .
![](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/6e83ac5efc4c142c43c5e7a3e156c407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b0ba14e41e306e5633ad4bf1cdedd8.png)
您最近一年使用:0次
2024-04-10更新
|
227次组卷
|
2卷引用:江苏省南京外国语学校2022-2023学年高一下学期第一次月考数学试题
名校
3 . 已知正六边形ABCDEF的边长为1,若点H是正六边形ABCDEF内或其边界上的一点,则
的最小值为______ ;若点N为线段AE(含端点)上的动点,且满足
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76425c16d41a92260a6cdcb11b2b869e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8dfaaebbeea40bce3f96d8bc1719f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
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名校
解题方法
4 . 已知圆O的半径为1,直线
与圆O相切于点A,直线
与圆O交于B,C两点,D为
的中点.若
,则
的可能取值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70fa2c1e50403dd1cdd969d6308692eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/992907998c85cf872f6e66df0b0c1030.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 一条河宽为800 m,一船从A处出发垂直到达河正对岸的B处,船速为20 km/h,水速为12 km/h,则船到达B处所需时间为多少小时(h)
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名校
6 . 作用于同一点
的三个力
处于平衡状态,已知
,
,
的夹角为
,则
与
夹角的大小为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d66f6559857f4e9b12e57c4bba39733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf7df35a54f266e6a23af1007f0129f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca5ed80bcc316fd738cc9503f1a3877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4949a50a01625d2290cc5ef590e51d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0211da37e92f915e781691296578ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8136e8bf2bde87aba070b76e3a3196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/809f928a25b77674be3116e2e79e6c65.png)
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名校
解题方法
7 . 已知
是平面内任意两个非零不共线向量,过平面内任一点
作
,
,以
为原点,分别以射线
为
轴的正半轴,建立平面坐标系,如左图.我们把这个由基底
确定的坐标系
称为基底
坐标系
.当向量
不垂直时,坐标系
就是平面斜坐标系,简记为
.对平面内任一点
,连结
,由平面向量基本定理可知,存在唯一实数对
,使得
,则称实数对
为点
在斜坐标系
中的坐标.
(长度单位为米,如右图),且
,设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685535354ea99d84fd8e59e5bb509483.png)
(1)计算
的大小;
(2)质点甲在
上距
点4米的点
处,质点乙在
上距
点1米的点
处,现在甲沿
的方向,乙沿
的方向同时以3米/小时的速度移动.
①若过2小时后质点甲到达
点,质点乙到达
点,请用
,表示
;
②若
时刻,质点甲到达
点,质点乙到达
点,求两质点何时相距最短,并求出最短距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a076848a8ffbd0760fcdfd36b8ae8437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8114aa9f42de32336bfab841980d8a24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4181d61c3ce87141eeb3433c872529a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc7553e6eb48e82ed03fab82d9d3f591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e647c14561826ba9e396acc5a3792c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4833bdfaf0e3c186c3748699aaedee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59fc0767aa413e427b60d09c84e3615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4833bdfaf0e3c186c3748699aaedee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9851846d24701bf7ab3b35fce7676d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4647b85ebbbc8889720c6ff3c929cd66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecbed7a9a503f5897311840eec49e940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4647b85ebbbc8889720c6ff3c929cd66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a314ab1aa622c7962cdfdee02410203e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53147d334931501aa2a1140e00ceeca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62eeab1830414dbbff26e27c6c78436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685535354ea99d84fd8e59e5bb509483.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88b14123852c3e17f0a519282e076797.png)
(2)质点甲在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14069d21d32c724f0ebe3e311f114c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167f121a878699fa60e6cb467bf10484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320319d8230188d5fd7e7c7f4a540ae1.png)
①若过2小时后质点甲到达
![](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/af62a51e61a58e7fb5ff757d34695ca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc1070a28cb9cb8553c29747d1993b16.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
您最近一年使用:0次
2024-04-07更新
|
590次组卷
|
15卷引用:重庆市渝东九校联盟2022-2023学年高一下学期期中数学试题
重庆市渝东九校联盟2022-2023学年高一下学期期中数学试题(已下线)单元提升卷07 平面向量与复数(已下线)模块一 专题2 平面向量基本定理与坐标运算(B)重庆市荣昌中学校2023-2024学年高一下学期3月月考数学试题广东省东莞市众美中学2023-2024学年高一下学期3月月考数学试题广东省东莞市海德双语学校2023-2024学年高一下学期第一次月考数学试题(已下线)模块一专题2 《平面向量基本定理与坐标运算》B提升卷(苏教版)(已下线)模块三 专题2 解答题分类练 专题5 三角函数与平面向量的实际应用(解答题)(北师大版高一期中)(已下线)模块一 专题4 平面向量基本定理与坐标运算(B)北师大版高一期中安徽省合肥市普通高中六校联盟2023-2024学年高一下学期4月期中联考数学试题(已下线)高一第二学期第三次月考(范围:第9~14章)-重难点突破及混淆易错规避(苏教版2019必修第二册)广东省麻涌,塘厦,七中,济川四校2023-2024学年高一下学期5月期中联考数学试题辽宁省实验中学2023-2024学年高一下学期期中阶段测试数学试卷广东省深圳市龙岗区平湖外国语学校2023-2024学年高一下学期期中考试数学试题安徽省马鞍山二中2024年高一6月月考数学试题
名校
8 . “圆幂定理”是平面几何中关于圆的一个重要定理,它包含三个结论,其中一个是相交弦定理:圆内的两条相交弦,被交点分成的两条线段长的积相等,如图,已知圆
的半径2,点
是圆
内的定点,且
,弦
,
均过点
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70fa2c1e50403dd1cdd969d6308692eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() |
B.当![]() ![]() |
C.当![]() ![]() ![]() |
D.![]() ![]() |
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2024-04-03更新
|
478次组卷
|
3卷引用:福建省三明市四校2023-2024学年高一下学期联考数学试题
解题方法
9 . 一物体在力
的作用下,由点
移动到点
,已知
,求
对该物体所做的功为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28ce735cf218a4acd6bf720c1250780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/991a5051a80bce60fabaffd82f5bcdb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa22e7534b91e5be13fce27be906f13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f120d1660cf97c64d01e699f92faa80.png)
A.-28 | B.-23 | C.23 | D.28 |
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解题方法
10 . 如图所示,
的顶点是我国在南海的三个战略岛屿,各岛屿之间建有资源补给站,在图中的
、
、
点上.岛屿
到补给站
的距离为岛屿
到
的
,岛屿
和岛屿
到补给站
的距离相等,补给站
在靠近岛屿
的
的三等分点上.设
,
.
(1)用
,
表示
,
;
(2)如果
,
海里,且
,求岛屿
到补给站
的距离
以及岛屿
到
的距离
.
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/d33adb74906403b0b00fcbd9fa691d8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b36392ec1e9dbab87d66059be35ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e8f1336ac2ff3658955b807eb0a27a0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/bc21ac39-0b0f-4746-a4a6-9b4e79f1e45e.png?resizew=149)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae54940f33b8714da5fe3b7546f8b3dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc1070a28cb9cb8553c29747d1993b16.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26fdd8e57562ba94e10e7f1d770826d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0566be94b1ed3e5d250ca530eeb529.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316c97c5b6f7c0fbdf7b9e4b9fccb661.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/dcedc17f292990a25ffe350f8d7be432.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/dff19c492923bb47ef54de071c27e8c1.png)
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