1 . 已知向量
(t,2t),
=(﹣t,1),若(
﹣
)⊥(
+
),则t=_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f6486933fe3c2459cb13943244a088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
您最近一年使用:0次
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2 . 已知非零向量
,
满足
,
,则
与
夹角为______ .
![](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/818d52f9ffd0189f0d4046b131e863a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8afdcd030c7fbdd2ea3244a4964c2ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
您最近一年使用:0次
2022-06-14更新
|
990次组卷
|
3卷引用:甘肃省高台县第一中学2022届高三下学期第七次检测数学(文)试题
3 . 平面向量
满足
,则
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96022a881e03e32d3483d997c3f170c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82abc6f15b4cf8ea66fb62a5fdd40932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0644f878816d0633bc195b72a4867d1.png)
您最近一年使用:0次
解题方法
4 . 已知向量
,
满足
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd1f4e0582f1316b872a17d4b7c5a33.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/f7f195fb0679639c7d5ab7445b84866b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f756829362e6004f03931327797db48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc6551a1cbe44ace25d4f7a9372ede5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd1f4e0582f1316b872a17d4b7c5a33.png)
您最近一年使用:0次
名校
解题方法
5 . 已知向量
、
、
满足
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc009cdbdb648e63e75034b9763e1e79.png)
______ .
![](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/bb573cc0f30d5c32cdad1510793f0e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e29168fe500dd6e7014659fc80a774e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b4897221a6c3bf678792f48dfa0a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/857ea67c111ecc5f61c87a24a6f7666b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc009cdbdb648e63e75034b9763e1e79.png)
您最近一年使用:0次
2022-06-02更新
|
398次组卷
|
2卷引用:福建省厦门集美中学2022届高三下学期适应性考试(最后一卷)数学试题
名校
6 . 已知点
,
,动点
满足
,则点M到直线
的距离可以是___________ .(写出一个符合题意的整数值)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd99c5000629d7f49499d666e68f40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fcf82d01c39fd2c96e1edba0ad37dd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77bc22b148dd8c17a29b08c5ee7fe707.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/026808536f6b6d265c778e23836fbf13.png)
您最近一年使用:0次
2022-06-02更新
|
1177次组卷
|
5卷引用:北京市第八十中学2022届高三下学期考前热身数学练习试题
北京市第八十中学2022届高三下学期考前热身数学练习试题直线与圆的方程中的高考新题型(已下线)专题36 直线与圆、圆与圆的位置关系-3(已下线)模块六 专题9 易错题目重组卷(安徽卷)广东省博罗县2023-2024学年高二上学期期中数学试题
名校
7 . 设H是
的垂心,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94091d69879156a80e8816f06978923c.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b44b2bfc58fedeb0950c014352fb22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94091d69879156a80e8816f06978923c.png)
您最近一年使用:0次
名校
8 . 络出下列四个命题中:
①若
为平面内两个不相等向量,则平面内任意向量
都可以表示为
;
②若
为同一个三角形的两个内角,当
时,则
;
③
,若
与
夹角为锐角,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a45c146bc520e9af43d55edc676890be.png)
④点
是
所在平面一点,且满足
,则点
是
的内心.
其中正确的序号是___________ .
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de92206d9c5afc2056f16086346a877e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1abdc197cab50e9b59fd74467aaf8ad8.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3155cda6a054b2022df932f4e3364362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c61cfbfd3bf888856b7dc9b2a84c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6f031eecd0793ccf4677ee2d47cf1bc.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4a9b9e77f22ea3c0a451351f8b06c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a45c146bc520e9af43d55edc676890be.png)
④点
![](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/40018175912da0930709934b329766de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
其中正确的序号是
您最近一年使用:0次
解题方法
9 . 在
中,
,
,
,
为
的重心,
在边
上,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b5b82773275510e3ed4ed7bce8b0ca5.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e46a4e894ae759de1877c4d24cd135fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f6b76b84f59139b6b11f010498b2bbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef352cae34d341c21b33a0008ca834ce.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b5b82773275510e3ed4ed7bce8b0ca5.png)
您最近一年使用:0次
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解题方法
10 . 若
,且
,则向量
与
的夹角为________ ,
的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64473eaab7c6265b528e7f9b142742a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b587f193f2278404ae04a07227c2c86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d792a2aa25763e14cc2863be3887000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004c63baf8107949f112ff288703d500.png)
您最近一年使用:0次