名校
1 . 满足等式
的解为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d3ade1d196a4964f5d6a27a48ce23a.png)
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2024-04-24更新
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148次组卷
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2卷引用:上海市闵行第三中学2023-2024学年高一下学期3月月考数学试题
2 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
__________ .(用反余弦表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34153e5d9096688b1ad3abd33322147.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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3 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36133b6656f7013db6e64497d4dd231.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36133b6656f7013db6e64497d4dd231.png)
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4 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eea373ece249796b7a9b56dbc86d9712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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2024-03-23更新
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125次组卷
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2卷引用:上海市松江区华东师范大学松江实验高级中学2022-2023学年高一下学期3月监测数学试卷
5 . 在棱长为
的正方体
中,
为
的中点,则异面直线
与
所成角的大小为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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2023-08-02更新
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297次组卷
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2卷引用:上海市上海大学附属嘉定高级中学2022-2023学年高一下学期期末数学试题
6 . 在△ABC中,角A、B、C所对的边为a、b、c.若
,
,
,则角C=____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82986ab38a4ae58593191ccae2a44f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5cac72465efefbbaf4e063836ed7a2.png)
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2023-07-05更新
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302次组卷
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6卷引用:上海市控江中学2018-2019学年高一下学期期末数学试题
上海市控江中学2018-2019学年高一下学期期末数学试题安徽省阜阳市2020-2021学年高一上学期期末数学试题上海市控江中学2022-2023学年高一下学期期末数学试题(已下线)上海市高一下学期期末真题必刷01-期末考点大串讲(沪教版2020必修二)(已下线)考题猜想01三角-期末考点大串讲(沪教版2020必修二)(已下线)上海市高一下学期期末真题必刷02-期末考点大串讲(沪教版2020必修二)
名校
解题方法
7 . 已知正三角形
面积为
,D为边
上一点,且
.射线
沿与
夹角为α的方向射到边
上的点E,经
反射交边
于点F.射线
经边
反射交
于点G.若点G在线段
上(不包括端点C、D),则α的取值范围为___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7cb903441d8e6b4448c3d5d7959d9d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa44b161ccef3dd736cdb2d78e78ddcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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8 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39e5e796f22afd5282d6ec092a9d5d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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9 .
三个角的大小关系是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a552d2bfb76c90357d4b7f85c429e1d.png)
您最近一年使用:0次
10 . 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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