名校
1 . 在
中,点
在边
上,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc8ada66ebf2bddb31e7b8b3bd95846.png)
![](https://img.xkw.com/dksih/QBM/2020/12/4/2606942471823360/2617525868478464/STEM/2f04c7cf6c4344a59d49d449abe1cc5a.png?resizew=189)
(1)若
,求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)若
,求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb6cc97050be604eb5af3fa5887a76d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc8ada66ebf2bddb31e7b8b3bd95846.png)
![](https://img.xkw.com/dksih/QBM/2020/12/4/2606942471823360/2617525868478464/STEM/2f04c7cf6c4344a59d49d449abe1cc5a.png?resizew=189)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e673ef2d48215ca84a48377f17d6df00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b1dd07c0571772e96d318f974724810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/449ff15df8c7c5ad70db0c367bae8b81.png)
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2020-12-19更新
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5卷引用:安徽省黄山市屯溪第一中学2019-2020学年高一下学期期中数学试题
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