名校
1 . 在等腰梯形
中,CD的中点为O,以O为坐标原点,DC所在直线为x轴,建立如图所示的平面直角坐标系,已知
.
;
(2)若点F在线段CD上,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d2d09493b38fc4c41cb19f0c4b6f53c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1239d20fa03551421f0949d878fe541.png)
(2)若点F在线段CD上,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aef759150f9e9a60042788fbf1a7ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980201d3fea976d86a818fee73faf1bd.png)
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7日内更新
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271次组卷
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4卷引用:河北省保定市定州市第二中学2023-2024学年高一下学期5月月考数学试题
名校
解题方法
2 . 已知平行四边形
中,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a636af185de5aebf115a28b1e205d88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-14更新
|
291次组卷
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3卷引用:陕西省西安市第一中学2024届高三下学期高考预测数学(文科)试题
名校
解题方法
3 . 设向量
,
满足
,且
,则
( )
![](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/327bd00ff3048e5833d25de3a7fbe349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ea3edc5496ecad2ab1c09f14aa9869.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/072b156d6fc1a4ed04070c0200feddd0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-14更新
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119次组卷
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3卷引用:四川省成都市第七中学2024届高三下学期热身考试数学(文)试卷
解题方法
4 . 如图,在
中,
分别是边AB,AC上的点,
,且
,点
是线段DE的中点,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080881113dcfedbb37be834669306a05.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab2284d326527ac5b6829c71a7b9e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b0393ce62b24aa5f9b740d4cc6743b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64ba1954221a03cd62f691aaa6f798fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8908d9e34f06b6a3509a1d8e999d5ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080881113dcfedbb37be834669306a05.png)
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名校
5 . 已知平面向量
,
,
,则下列说法错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf470ed1e71f23d870825b08a2e338b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ebc70d30d5a9db7a0b7ef61348ac61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4545e5b893e3d207a2134cf973406b.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.![]() ![]() ![]() |
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解题方法
6 . 已知向量
与
的夹角是
,且
,
,则向量
在向量
上的投影向量是( )
![](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/290710d643ab6cd3b9edd73815b1d8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0ae443a505d263c44a3d7515fd0170.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34fa8ea29001bb1f0c1e5157aff2fca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
24-25高一上·全国·课后作业
7 . 若
且
,则
.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa8f7351f41cbfc74f99de51c752ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f6e8e539b10975174077d1fbf8d8099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58fbeefcb60bff9eab8243d3b4931123.png)
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2024高三·全国·专题练习
名校
解题方法
8 . 已知向量
,
,
,
_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0150d9c357f2f8f8deecacd3ef0545cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcad49be70d78e1e475d77c9d64d617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41910605980fe3f71b60a50e15e97023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fdf6f4e96b231e2802b5d6059451534.png)
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2024-06-03更新
|
574次组卷
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5卷引用:专题10 平面向量(理科)-2
(已下线)专题10 平面向量(理科)-2(已下线)专题9 平面向量(文科)-1安徽省马鞍山市第二中学2023-2024学年高二上学期开学检测数学试题陕西省商洛市柞水中学2024届高考仿真模拟考试数学(理科)试题陕西省柞水中学2024届高考仿真模拟考试数学(文科)试题
9 . 如图,圆
,圆
,动圆
与圆
外切于点
,与圆
内切于点
,记圆心
的轨迹为曲线
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f09301f91879129399c1ba45635f89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3e7ea39906456429384362b6d037ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() |
D.曲线![]() ![]() ![]() |
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名校
解题方法
10 . 已知
,
,
,求:
(1)
;
(2)
与
的夹角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7958a6bddd1d578bbd6fbcb92e3f6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190efc599b93baddd642ed5e2fcbcdaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594d993556173ded55043c25230776b2.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e6f98f23fea7db0f74897928024ca0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed492f7b29166ba5c1f0023b05a439c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3143307ad0ba4a631eac04e814993655.png)
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2024-05-29更新
|
621次组卷
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5卷引用:江苏省常州市联盟学校2023-2024学年高一下学期3月学情调研数学试卷