1 . 已知
为钝角,且
,角
,
,
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2896049a682f1bdbee0886eae1f2b9.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc2201ec2556638a0a9401137b8c070d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b6612254a68353e3f6879f7d72ffd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2896049a682f1bdbee0886eae1f2b9.png)
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解题方法
2 . 已知角
的顶点与坐标原点重合,始边与
轴的非负半轴重合,终边经过点
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 如果点
位于第四象限,那么角
所在的象限是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31601ef8b958fe16ed5439134b73a2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
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解题方法
4 . 设点O是
所在平面内任意一点,
的内角A,B,C的对边分别为a,b,c,已知点O不在
的边上,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.若点O是![]() ![]() |
B.若点O是![]() ![]() |
C.若![]() ![]() |
D.若O为![]() ![]() ![]() |
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解题方法
5 . 若单位向量
,
的夹角为
,则
( )
![](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/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99959bd70f52ce3fa6eac1a9751c3508.png)
A.![]() | B.![]() | C.4 | D.5 |
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6 . 已知向量
,
,
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ce5bf6d859fb73061a6bd114a8268d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6097ea16d56cd90a3d2db8e855574f27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34281318027f1d9d7cffd42d2cca8df.png)
A.若![]() ![]() |
B.设函数![]() ![]() |
C.![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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解题方法
7 . 已知
,
.
(1)求
的值;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880c6756bc9571215d5e36a12bcbb4fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29bfdb5f50c0514b2b7cb83b2c29407b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e8a621ef4f63633a8a70ababe0ca15.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fbe2212c10c3da621f550e8c6409bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f07029c97c324d32f258f18a96654a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d220425cf3f9afe8530087e4f6dc90ad.png)
您最近一年使用:0次
2024-06-03更新
|
228次组卷
|
2卷引用:河南省南阳市第一中学校2023-2024学年高一下学期5月月考数学试题
名校
解题方法
8 . 已知向量
满足
,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d840607a5e9fb9a63119de449e134e2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29276b43a2950ed71f0f9629a35dfa74.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-01更新
|
318次组卷
|
3卷引用:河南省漯河市源汇区漯河市高级中学2023-2024学年高一下学期5月月考数学试题
名校
解题方法
9 . 两个非零向量
、
互相垂直,给出下列各式:
①
;②
;③
;④
;⑤
.
其中正确的式子有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880c690f1ec31490b96be592c2c748b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76e332fdb0d734d6f3015f88ce4d8f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef84d275246c94cd7d9c983231210fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7058f4df5f5789ef6d612e0d8b9e23fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4154cb6dff75b54549bfa7c9ca8e48f.png)
其中正确的式子有( )
A.2个 | B.3个 | C.4个 | D.5个 |
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解题方法
10 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79bb77f512509b7c6cff4125d347c18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d63ef91cadd93de3ef89a943004bb6a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次