1 . 已知
,若
,用反正弦符号表示
为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d450aea0fb89e956fc4caa3a9c59fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c04ca22dba343e23584976deeedf071f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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名校
2 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb78931653279a0ff82fde55343a8a15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffa28c7f519c1c85c0a3cad23b2e6cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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3 . 已知
,
,则
等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d09a30a9d8df263154aac82903fc179d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e01b6fb6a1c7a895df528382a5583444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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解题方法
4 . 若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/527e4ff6df4a0c447c09006a0e22db40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e8c744b281e2de059ad64015a6d7e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
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2022高三·全国·专题练习
5 . 已知向量
,
,则
与
的夹角为__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f916000aed0824c4db0a18a2ba0e3b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634dd7f0d521f731c44689eb69dc29dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
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名校
6 . 若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9b46a66acaafd8fa7d77a1537047e20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b124c20569fad5eb3a6a56bd800c89e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
您最近一年使用:0次
2022-04-14更新
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463次组卷
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3卷引用:7.3.5 已知三角函数值求角-【帮课堂】(人教B版2019必修第三册)
(已下线)7.3.5 已知三角函数值求角-【帮课堂】(人教B版2019必修第三册)辽宁省沈阳市沈河区第二中学2021-2022学年高一下学期4月月考数学试题辽宁省沈阳市第二中学2021-2022学年高一下学期4月月考数学试题