解题方法
1 . 计算
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf5a5adf1c03289c9f7a2b1ed0f102b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-07-06更新
|
357次组卷
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2卷引用:广西梧州市2021-2022学年高一下学期期末检测数学试题
名校
2 . 若
,
,且
,则实数
的值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5afe691666d39625582a9dd4054ee00c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de3bc164ed559729a2979116b79d7bce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ec866a38a23f014dee37ed4bda40ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-02-21更新
|
756次组卷
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4卷引用:广西梧州市岑溪市2021-2022学年高二下学期期中考试数学(理)试题
广西梧州市岑溪市2021-2022学年高二下学期期中考试数学(理)试题吉林省长春市东北师大附中2022届高三第二次摸底考试数学(理)试题(已下线)二轮拔高卷05-【赢在高考·黄金20卷】备战2022年高考数学(理)模拟卷(全国卷专用)(已下线)5.5.1两角和与差的正弦、余弦、正切公式(第2课时)(导学案)-【上好课】
3 . 若
,
是方程
的两根,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ba97cbf81f7717f79db450526ec6c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a086508ce94957301b8c9089b3cf15b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39f8e362dcf03b29af53d19cc5876131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d9a5a9b447e4c1cb3e2d8ddfd1ac94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-04-05更新
|
406次组卷
|
3卷引用:【市级联考】广西梧州市、桂林市、贵港市等2019届高三上学期期末理科数学试题
4 . 在
中,已知
,
,且
最大边的长为
,则
的最小边为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc776ece502f599c08dde225cc33e55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324b71a7f5477eb3a32cc31ae3f0a87c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e20838e72faf737614d76fcee82ab6c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
A.1 | B.![]() | C.![]() | D.3 |
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