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1 . 已知向量
的夹角
,且 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029d26a0c841ff72e442f1e661c18edf.png)
下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10814bc3db929e79874befe96cf4e3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0211da37e92f915e781691296578ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029d26a0c841ff72e442f1e661c18edf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
A.若![]() ![]() ![]() |
B.![]() |
C.![]() |
D.![]() ![]() |
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2 . 下列说法正确的是( )
A.在四边形![]() ![]() ![]() |
B.若![]() ![]() |
C.已知O为![]() ![]() ![]() |
D.已知![]() ![]() ![]() ![]() ![]() |
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3 . 已知向量
,
,定义运算
,同时定义
.
(1)若
,求实数
的取值集合;
(2)已知
,求
;
(3)已知定义域为
的函数
满足
为奇函数,
为偶函数,且
时,
,是否存在实数
,使
?若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7ec6dba44a83ae69146c26a2eec325c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66717aa3e7a771427c1d4433c77a5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4817c9821c3c5268e665a3ebcfe2e9cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/153f8261059b286d175e53adb666d0bd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e993a236a70e4a094013a28c07079f84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/237b1a6f3e6ee0ef92b4aef7bffe58ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5285f8cfbab2baf73267d7649a58ac.png)
(3)已知定义域为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91340ce6d32493c33527a32c2d448896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffde73ff7d3cd5125eb8d8a17a9f01c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994dcf841d356002fcebaed37497013c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de03de9f4bea859252f0158b32acf378.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bb0b435b3f1a00ee1df0d02384d6e57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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解题方法
4 . 下列说法不正确的是( )
A.函数![]() ![]() |
B.函数![]() ![]() ![]() |
C.若![]() ![]() |
D.函数![]() ![]() |
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5 . 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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3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
解题方法
6 . 我国历史悠久,各地出土文物众多.甲图为湖北五龙宫遗址出土的道家篆书法印.图乙是此印章中抽象出的几何图形的示意图.如图乙所示,在边长为2的正八边形ABCDEFGH中,P是正八边形边上任意一点,则
的最大值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab7aaa871ceb78e5b80b531a7cf4f1c9.png)
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7 . 已知P是边长为1的正六边形
内一点(含边界),且
,则下列正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/013783f70b317dc7ecbf358e005037ae.png)
A.![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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2024-05-08更新
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243次组卷
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3卷引用:江苏省扬州市新华中学2023-2024学年高一下学期5月月考数学试题
江苏省扬州市新华中学2023-2024学年高一下学期5月月考数学试题广东省广州市增城中学2023-2024学年高一下学期期中数学试题(已下线)专题3 以平面几何图形为背景的向量综合问题【练】(高一期末压轴专项)
名校
解题方法
8 . 已知集合
,若
且
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d8d2066c889853be7edf105407ce1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8175dc086640a31fd4291f7e113814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a93ea558eaffc36d5c6da5c0725a9ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
A.2 | B.![]() | C.![]() | D.1 |
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9 .
个有次序的实数
所组成的有序数组
称为一个n维向量,其中
称为该向量的第
个分量.特别地,对一个n维向量
,若
,
,称
为n维信号向量.设
,则
和
的内积定义为
,且
.
(1)写出所有3维信号向量;
(2)直接写出4个两两垂直的4维信号向量;
(3)证明:不存在14个两两垂直的14维信号向量;
(4)已知
个两两垂直的2024维信号向量
满足它们的前
个分量都是相同的,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2b043b989216035c6fd985f1dd6a3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97de4e0337716e1d89eb1a6cfd7b8335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6e51ca089ee13a138e985e20f1b7b3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c43d0d6f87afa8b4fd5f6cf81f2bdcdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da796531c7b6c590a22b811df1fcef53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/293e6a784d135c77e3bded6f48f6eec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b6be373930634c9aa53fec30bec8896.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/ea2978e42bc0f5abe31fe2536969afa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19c7c807358869b70becd16ca80e1714.png)
(1)写出所有3维信号向量;
(2)直接写出4个两两垂直的4维信号向量;
(3)证明:不存在14个两两垂直的14维信号向量;
(4)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9cae65660b220cc622b87ed9eea092.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf2182d0dad848ccc76944d976befbf2.png)
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10 . 已知函数
,函数
为偶函数.
(1)证明:
为定值.
(2)若函数
在
内存在零点,且零点为
,记
,请写出X的所有可能取值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9dc88fbdad5cf2ad6d8ce522b93164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2099a1899917e027347f06b7234139d6.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f7a7bec63742ebe6bd0608b0afeb6.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4246b94bd716059eddece7c7391b4858.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e2b2d3db0182fbefdd050701c581dca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c15f08575f8b4fce9de87ac2ec5fb8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b80d63a2886cb178b892dca61e5b50.png)
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2024-04-20更新
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194次组卷
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2卷引用:江西省部分高中学校2023-2024学年高一下学期联考数学试卷