求
等的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba10d7f170f8a26c3367a57e1d5f6b7.png)
更新时间:2019-11-09 13:12:43
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相似题推荐
解答题-问答题
|
较易
(0.85)
名校
【推荐1】已知向量
,函数
,
(1)若
,求
的值;
(2)在
中,角
对边分别是
,且满足
,当B取最大值时,
,
面积为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e98257f68e60bd1c9a0a0b2a58c2732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa1d63b2aff763f89ce361f0c56bf6f8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b1820a50be21898f3d1ce8b10ad66b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1762544d9194114814b808e324c305e6.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/516983449108347c9bbf5dd2a72ab3dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d90d7f054e8f0346479e1999622f11cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e387e509b2849f1092ed6af2acc70f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302337058242c7b78e3eb4ac7210b7ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffc97f5fb5eb573bb92d3c29e343ee40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3025e0dfcda1c846876e2f9c25633a06.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】在
中,
所对的边分别为
,且
,
,
.
(1)求
的大小;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09eebab59213386449a726b75065bf76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc941c8c266e0c1f0b20e8810b5b9810.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次