名校
1 . 已知向量
,其中
.
(1)求
,
,
;
(2)求
与
的夹角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf8c3958509b6bc08f99ae12af0cecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f2b6d697fcbaeb5c4afeb19447ca392.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21c92df13be8b21f9870fc354bdddb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93af88a7628c71d642d3a6df067c15f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e6f98f23fea7db0f74897928024ca0.png)
(2)求
![](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/c24095e409b025db711f14be783a406c.png)
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2 . 下面给出的关系式中,正确的个数是 ( )
①
;②
;③
;
④
;⑤
.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81827d77a61b6882a4f5a4c8beafd89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb72256695bffefefffc1572fc08f45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/babc3b7c4afefa656f49b34566b98b92.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639805ba44f7e18b0c4792e7cda68792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d759f7ce44466451a9d39e298dddab2.png)
A.0 | B.1 | C.2 | D.3 |
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名校
3 . 下列说法中,正确的是( )
A.存在![]() ![]() ![]() |
B.不存在无穷多个![]() ![]() ![]() |
C.对于任意的![]() ![]() ![]() |
D.不存在![]() ![]() ![]() |
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4 . 已知
按照斜二测画法画出的直观图
如图所示,其中,
,
.
的原图的形状并求其面积;
(2)若以
的边BA为旋转轴旋转一周,判断所得几何体的名称及求其体积和表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b353a6132774247916822e359377556.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9458968b0703e1ae8a6f23386fffba11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解题方法
5 . 已知
,则
的最小正周期为______ ,
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e078bffc5aa18a9488e08280efe3d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a030d54b4b38ae441519431c534b81c.png)
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6 . 已知
,
.
(1)若
,求
的坐标:
(2)若
与
的夹角为120°,求
在向量
上的投影向量的模.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/145a7e8f352fab613b773dc6639b508b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a38afd43a2b5b67366f3376abd3e35.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1afa49dbaa99a0d7a7a6d18b3fe42091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
(2)若
![](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/1bca35e52b8430246a1cf96e9e617cce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
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7 . 如图所示,
是水平放置的
的斜二测直观图,其中
,则以下说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78fb1cd900171c83318a8bc3e22c5d9c.png)
A.![]() |
B.![]() ![]() ![]() |
C.![]() |
D.![]() ![]() |
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2024-05-07更新
|
625次组卷
|
3卷引用:广东省梅州市梅县区丙村中学2023-2024学年高一下学期期中段考试数学试卷
广东省梅州市梅县区丙村中学2023-2024学年高一下学期期中段考试数学试卷(已下线)6.2 直观图-同步精品课堂(北师大版2019必修第二册)陕西省咸阳市武功县普集高级中学2023-2024学年高一下学期第3次月考数学试题
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8 . 已知复数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ddbc7365f4e171079a6cbce6f3d303e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
9 . 已知
,
,且
,则
的最小值是______ ;当
取得最小值时,
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6d474e6cd19b54fcc32889975ceb9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af4669c96dd79a2e582f744fc1bc442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af4669c96dd79a2e582f744fc1bc442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a042f7647c4310c80f7ffe144c81c0e.png)
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解题方法
10 . 已知函数
是定义在
上的偶函数,且
,当
时,
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4653b4a5255fa1cb87449a420c540946.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966d9dd819cba29980da3700422c2497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921dbd0a94b4ec26335a4daeee975b3f.png)
A.![]() ![]() |
B.![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() |
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