解题方法
1 . 函数
的图象大致为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb1f79cb208460347c3d59e9f454a34c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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3卷引用:青海省海东市2020-2021学年高一上学期期末考试数学试题
解题方法
2 . 已知角
的终边经过点
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4a0a3108c2c7be15ac4c4234d05c4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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3卷引用:青海省海东市2020-2021学年高一上学期期末考试数学试题
3 . 已知平面向量
,
的夹角为
,且
,则
( )
![](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/c0211da37e92f915e781691296578ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e529f99fb4598c771ffa21b4a674191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f233803ccc487b243f31ae3b2846d60.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4卷引用:青海省海东市2020-2021学年高一上学期期末考试数学试题
青海省海东市2020-2021学年高一上学期期末考试数学试题江西省抚州市2020-2021学年高一上学期期末数学(B卷)试题贵州省龙里县九八五实验学校2020-2021学年高一上学期期末质量检测数学试题(已下线)专题8.1—平面向量—数量积—2022届高三数学一轮复习精讲精炼
4 . 已知
,
.
(1)分别求
,
的值;
(2)若角
终边上一点
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c04ca22dba343e23584976deeedf071f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a892dbcef7934d97016bb190d94e0bc3.png)
(1)分别求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4c306bace220315233a37c78260014.png)
(2)若角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/353acadc9793577428b6ac2aeac3648e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03a3c20f6c72d3bf304702ffe3e9e075.png)
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3卷引用:青海省西宁市大通回族土族自治县2021-2022学年高一上学期期末考试数学试题
名校
解题方法
5 . 若单位向量
,
满足
,则向量
,
夹角的余弦值为( )
![](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/1d4bbd2675172719d6fd4fcc8580cdb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6卷引用:青海省海南藏族自治州高级中学2021-2022学年高一上学期期末考试数学试题
解题方法
6 . 已知
.
(1)若
为锐角,求
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1469de1307ea0c33a522af78e39244c6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b572eda818c9ab7aa1569dab9f991f01.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01148b95e11bb680205baa38b23d333c.png)
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2卷引用:青海省西宁市大通回族土族自治县2020-2021学年高一上学期期末数学试题
7 . 已知函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15ea47124be5378b21f8a86d6db1b89.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385b344ea3a0cadf90f1f71db5ebb425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15ea47124be5378b21f8a86d6db1b89.png)
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名校
解题方法
8 . 已知函数
(
,
,
)的图象如图所示,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/90ccad66-e165-42bb-913f-ba4356ec2be2.png?resizew=192)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8036724caa84ff7584d467fcccb3f5e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d65b6b24f2b83a74a2a6f7afb1df89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/90ccad66-e165-42bb-913f-ba4356ec2be2.png?resizew=192)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4卷引用:青海省西宁市大通回族土族自治县2020-2021学年高一上学期期末数学试题
9 . 已知向量
,
.
(1)求
的值;
(2)若
,求实数λ的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23bdc0ce4bca80e27b8c8f176a638622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02ac06908cf74962e97ac2f0ad7ef21c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acb2a41bff274da0606b406443317349.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c80f7e272b9b7fe8b858348ad0a455f.png)
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5卷引用:青海省海东市2020-2021学年高一上学期期末考试数学试题
解题方法
10 . 已知平面向量
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e42adcda0ec794208e6f335b4744f4.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f1df85c2d82a4c08bb65fe531730e3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b164304c5ae5226f51fd8e69874d3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32b6dc307d12bbd6b850a67b0599620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e42adcda0ec794208e6f335b4744f4.png)
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