已知
.
(1)求的
解析式;
(2)在
中,
分别是内角
的对边,若
的面积为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b8cc35715cd7db757b74ad38359807.png)
(1)求的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2574513361a4409e770bff5d66d40f53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2017-04-13 21:23:36
|
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解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐1】已知
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【推荐2】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f4a77555c0963f45492fbe07f154264.png)
(1)求实数a的值并求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/798d285b3f1596ffa54196e6ad7beb36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a20140abb590de9de4601eb32aea39d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12c18bf58b6ecb8958af53a95fb7da1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032e8dc00cdc96860c9cbf8ac09677fc.png)
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【推荐1】在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
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【推荐2】函数
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【推荐1】记
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![](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/b85bb05605d5773c1a81afd57adc0275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐2】某在建小区为了提高绿化率,创造更美好的生活环境,计划再建一个四边形花坛(四边形
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(1)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b73929da2f7b3138daf275ebb4add6dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9680bd6f250acb8b568510419b59d3e7.png)
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适中
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【推荐2】如图,在正方体
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,
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(1)求证:平面
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/19/5885aa87-0d8c-4524-b6f1-11d10e4ae823.png?resizew=221)
(1)求证:平面
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(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13cf3a313649d7b92f28dd9fb8c27e41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
您最近一年使用:0次