名校
1 . 已知
是
所在平面内一点,且满足
,则点
是
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff3802e1b1464be3a74046a05a13f4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
A.外心 | B.内心 | C.垂心 | D.重心 |
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名校
2 . 已知
为线段
(所在的直线)外一个定点,记![](https://staticzujuan.xkw.com/quesimg/Upload/formula/986895059f89c1ffc9e336bea1749b44.png)
(1)若
是线段
的三等分点,试用
表示
;
(2)若线段
上有若干个等分点,能得到什么结论?请证明你的结论.(注:根据结论的一般性程度予以不同得分)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/986895059f89c1ffc9e336bea1749b44.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5425108c557f0f21474c045334f97d9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d194ecefc9101001d88d3cc0bc9d6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a0b6ab5322fc8cc56af9207c3e9fe9.png)
(2)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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3 . 设
是平面内共始点的三个非零向量,且两两不共线,
有下列命题:
(1)关于
的方程
可能有两个不同的实数解;
(2)关于
的方程
至少有一个实数解;
(3)关于
的方程
最多有一个实数解;
(4)关于
的方程
若有实数解,则三个向量的终点不可能共线;
上述命题正确的序号是__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab7cad34fccd0fe584087604e863f352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(1)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96310bd2f0ba4d524f23794d142a3588.png)
(2)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96310bd2f0ba4d524f23794d142a3588.png)
(3)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96310bd2f0ba4d524f23794d142a3588.png)
(4)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96310bd2f0ba4d524f23794d142a3588.png)
上述命题正确的序号是
您最近一年使用:0次
2020-01-16更新
|
492次组卷
|
2卷引用:上海市七宝中学2017-2018学年高二上学期期中数学试题
4 . 已知有两个不相等的非零向量
,两组向量
和
均由2个
和3个
排列而成,记
,
表示
所有可能取值中的最小值,则下列命题中真命题的序号是_________________ (写出所有真命题的序号)
①
有5个不同的值;
②若
,则
与
无关;
③若
,则
与
无关;
④若
,则
;
⑤若
,
,则
与
的夹角为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/116e2e7116a7b5cd0a912ec0699ca017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d652b98f2db3c3002c9ef6fdc060d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e142505aaa7b64eaba9421bd0fea9e3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be118f18e17dc2420b2c7021268c6bda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494f173fed024b28d9e2bc7a96362d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ab55ce496dc3dfdf3f0c459ccf49cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494f173fed024b28d9e2bc7a96362d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70fbd20f1e059a8a7f95435278b5ac81.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac408a5d33731ec9026a0a0e21d071f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494f173fed024b28d9e2bc7a96362d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70fbd20f1e059a8a7f95435278b5ac81.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c58f8c034f39f3d2a3999d71c96913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba4b77e77f7b2d0fc8187985a57c9902.png)
⑤若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a90612778afd628ab803cc879654743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d79aa686572fa83f7c3e5c7c3a4da55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
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5 . 已知
、
(其中
)
为坐标原点.
(1)动点
满足
(
),求点
的轨迹方程;
(2)设
,
,…,
是线段
的
(
)等分点,当
时,求
的值;
(3)若
,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3160fc73f2a90ae4a1a97351ab2673b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9199b50dd0036be9b764c621d1d46f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eae9ba258299eb489b490594397e23c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5053bb7fd22f8e02f9470b226c022fca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd9736828195f010db4e1f0a9dea7a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eb90a2118db1e9945d7b5997bf2482a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72bdc4779e83088e05d9bad18f888c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a60ada442f219acec13f64bfd3c62a7f.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d348672c1672a6f06295f3050c229c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f69287f39c0d0b24db86b12100b1a7d9.png)
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6 . 已知等边三角形
中,点
为线段
上一点,且
.
(1)若等边三角形边长为6,且
,求
;
(2)若
,求
的值
(3)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0a4b74ebe0c939105ceb9467727094.png)
(1)若等边三角形边长为6,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1c3ea872a20fdc1843cb5ffce8a554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78105367e5fda221e68ffc7463fa31b7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6eeda5c5b6777efb480ce665b84b9ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ded12d358a558af0671ea742f42d182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2020-03-07更新
|
700次组卷
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2卷引用:上海市青浦一中2016-2017学年高二上学期期中数学试题
名校
解题方法
7 . 点
在△
内部,且满足
,则△
的面积与△
、△
面积之和的比为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92f24e7d8b45c1c1acbf96a1f9fec31a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc83f34b5a3c1dc09d990ce4bdc8e078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dac901ff434c379e158fccd64dc6401f.png)
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2020-03-05更新
|
573次组卷
|
3卷引用:上海市控江中学2016-2017学年高二上学期期中数学试题
上海市控江中学2016-2017学年高二上学期期中数学试题(已下线)专题02 平面向量-2021年高考数学二轮复习解题技巧汇总(新高考地区专用)湖北省武汉市蔡甸区汉阳一中2020-2021学年高一下学期5月月考数学试题
名校
8 . 设函数
,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2a71744d0c37d9bf851adc12087eb6.png)
(
,
,
)为已知实常数,
,下列关于函数
的性质判断正确的个数是( )
①若
,则
对任意实数x恒成立;②若
,则函数
为奇函数;③若
,则函数
为偶函数;④当
时,若
,则
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad7ffb9ab5ee6a244939c0a0ac7358e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2a71744d0c37d9bf851adc12087eb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb853c35a7d17396aa032e33505002f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ab46d077ba3d6e13fa1f6a5aaa0ce6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e8cc82c03cabcddfa5e9cec6dced62d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104375baf5cef5eb92cfc7cf13b80193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5dabbaf770207f1d9b83ca67ac9147.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf2dd8a5301d3f252c686dfe2331eae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40fd17a767750d2f6445f7230093bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40539440ed8a8c6611e1db3322f02d9a.png)
A.4 | B.3 | C.2 | D.1 |
您最近一年使用:0次
2020-02-16更新
|
974次组卷
|
4卷引用:上海市嘉定区第一中学2022-2023学年高二上学期期中数学试题
名校
9 . 已知集合M={(x,y)|x﹣3≤y≤x﹣1},N={P|PA≥
PB,A(﹣1,0),B(1,0)},则表示M∩N的图形面积为__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
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10 . 已知向量
,其中
均为非零向量,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/947410daa1e8838267554e5e609a0caf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06bb5c33537724ed700a9b93ed3078ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4530667ea9604f58adca72c396122bf.png)
A.[0,![]() | B.[0,1] | C.(0,2] | D.[0,2] |
您最近一年使用:0次
2019-01-11更新
|
1115次组卷
|
2卷引用:上海市泥城中学2018-2019学年高二上学期第一次月考数学试题