名校
1 . 已知平面向量
,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b3515de9a26c0397039e077f272b1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30eab8ca890e4438efb8bfe93529f114.png)
A.![]() |
B.若向量![]() ![]() ![]() |
C.与![]() ![]() |
D.![]() ![]() ![]() |
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5卷引用:河北省保定市第一中学2023-2024学年高一下学期贯通创新实验班开学考试数学试题
解题方法
2 . 如图,
均为等腰直角三角形,
在线段
上,
,在扇形
中,
为
的中点,
为
上一动点,
为线段
上一动点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8345eade0a8c625a0eb05cb993e890e1.png)
![](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/fea5d278b2333aacbaee65117cd9eff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf126cfed85fa9b7720ec6f7b0008dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb3820bab977db734f4335e4fde720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb3820bab977db734f4335e4fde720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/17/958937f4-5df9-4fa9-948c-d75618dcd033.png?resizew=159)
A.向量![]() ![]() ![]() |
B.向量![]() ![]() ![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() |
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解题方法
3 . 下列命题中正确 的是( )
A.若向量![]() ![]() ![]() |
B.若四边形![]() ![]() ![]() ![]() |
C.若![]() ![]() |
D.已知向量![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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2023-06-26更新
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521次组卷
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7卷引用:河北省唐山市曹妃甸区第一中学2022-2023学年高一下学期期末数学试题
名校
4 . 如图所示,设Ox,Oy是平面内相交成
角的两条数轴,
,
分别是与x,y轴正方向同向的单位向量,则称平面坐标系xOy为
斜坐标系,若
,则把有序数对
叫做向量
的斜坐标,记为
.在
的斜坐标系中,
,
,则下列结论中,正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d9c9451bf99a367f7f29991dc8ab4c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2868a9fe011f56a80c9d1a8ee4604d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36fe4e713c108e118522a99ecd683924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2caf1e8d14ccc468862ad1b4ae29b6ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e57a73431f93b1cf7fc1eca6cb79e248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e186ebc624ebacde9a03b96289f1ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d769ab21af5365d3c00dc617375ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99204cc0147faef5556ac86e805ce74e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/25/d228c494-e413-4a59-a511-4f6e5f963fae.png?resizew=182)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() ![]() |
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2023-06-20更新
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2卷引用:河北省沧州市重点高中2022-2023学年高一下学期期中联考数学试题
名校
解题方法
5 . 已知两个单位向量
,
的夹角为θ,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
A.不存在θ,使![]() | B.![]() |
C.当![]() ![]() | D.![]() ![]() ![]() |
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解题方法
6 . 已知平面向量
,
,
与
的夹角为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcad49be70d78e1e475d77c9d64d617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf508c8d34aab12dae46e1d05fcd7f01.png)
![](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/ac1a63ab608517bb10aa036783dfb51f.png)
A.![]() ![]() | B.![]() |
C.![]() | D.![]() ![]() ![]() |
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2023-04-21更新
|
1098次组卷
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6卷引用:河北省石家庄师大附中2022-2023学年高一下学期第三次月考数学试题
河北省石家庄师大附中2022-2023学年高一下学期第三次月考数学试题广东省佛山市荣山中学2022-2023学年高一下学期期中数学试题(已下线)高一数学下学期第二次月考模拟试卷(第6章-第8章)山东省临沂市临沂第一中学文峰校区2022-2023学年高一下学期5月月考数学试题(已下线)复习专题02平面向量的数量积运算(1)-期末专项复习四川省自贡市第一中学校2022-2023学年高一下学期6月月考数学试题
名校
7 . 下列选项中正确的是( )
A.若平面向量![]() ![]() ![]() ![]() ![]() |
B.在![]() ![]() ![]() ![]() ![]() ![]() ![]() |
C.函数![]() ![]() |
D.已知向量![]() ![]() ![]() ![]() |
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2023-02-15更新
|
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8 . 如图,在四边形
中,
,
,
,E为
的中点,
与
相交于F,则下列说法一定正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/6/17/3003194653818880/3003910859259904/STEM/448f76e9c8824f639bcaea57bca41057.png?resizew=212)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9861376e6228e25f00bee2a63acd55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b4a834b8509bf0eb7b6ca709f1dde4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c10e0344f58cf7b4e99f3dd758eb363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://img.xkw.com/dksih/QBM/2022/6/17/3003194653818880/3003910859259904/STEM/448f76e9c8824f639bcaea57bca41057.png?resizew=212)
A.![]() | B.![]() ![]() ![]() |
C.![]() | D.若![]() ![]() |
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2022-06-18更新
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6卷引用:河北省石家庄市二十一中2022-2023学年高一下学期期中数学试题
名校
9 . 已知椭圆
:
的离心率为
,短轴长为4,
,
为
的两个焦点,
为
上任意一点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c9bebea391a1f9956dfcca98d9d1f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.满足![]() ![]() |
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3卷引用:河北省衡水市部分学校2022届高三下学期3月联考数学试题
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10 . 已知向量
,
,
是与
同向的单位向量,则下列结论错误 的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff0812ea92afd60233426521798f5ca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dbb470a456fb79ab9fb13907a8d2e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc64abe49847ade9b78678ba1f8e0e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
A.![]() | B.![]() ![]() |
C.![]() | D.向量![]() ![]() ![]() |
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|
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4卷引用:河北省定州市2021-2022学年高一下学期期中数学试题