在
中,
分别是
所对的边,若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f774cd650f14c8f6e4fe0c6a432768bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/45ccbc45064531f25683797fb09e4edd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b1dd07c0571772e96d318f974724810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8df5d21e5f6106fce7291fd8023d346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f774cd650f14c8f6e4fe0c6a432768bb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2018-10-11 10:36:20
|
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【推荐1】已知函数
,
的值域为
,则
的值不可能是( )
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A.1 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐1】如图,在平面四边形ABCD中,
,∠ADC=45°,∠ACD=105°,∠B=60°,AB+BC=4,则三角形ABC的面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/5/69ab811f-4426-40c0-9bf3-2371a487ef0a.png?resizew=198)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】在
中,内角A,
,
的对边分别为
,
,
,已知
,
,且
,则
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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【推荐1】在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be103fd3ce46a6b6f271e60523597c3.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】已知椭圆
:
的左、右焦点分别为
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