在
中,若角
的对边分别为
,且
.
(1)求
的大小;
(2)若
,求
的面积.
![](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/2311e9af36b81cf415168ee431c4b117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/232a2b310fe88c2db74516470a1b3622.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760cd179bc62a56262d81cc4d0b71a60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
更新时间:2022-05-22 11:18:24
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【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f901c98e90b27066d634fccabfc0af.png)
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(2)
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【推荐2】已知在
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【推荐3】如图,在海岸线EF一侧有一休闲游乐场,游乐场的前一部分边界为曲线段FGBC,该曲线段是函数
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/9/8d3b5007-c831-4e70-ac86-521d34a0ecfc.png?resizew=208)
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【推荐1】在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7609bdc806b3f20028facf0bdc4897b.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77fd20081963a879a68ec0ef947c647b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3320a13248a3a1208ff6ee85c9d26f36.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed498b8aab0dfed96bd7d540f55fc018.png)
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【推荐1】在中,角
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐2】在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb8391a30a191b22e483db135fd476cd.png)
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