名校
1 . 已知
三边所在直线方程:
,
,
(
).
(1)判断
的形状;
(2)当
边上的高为1时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef428a0e51b054777334683061aeeeac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/228d37562b29e337b598de9f97881324.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35fad8fd052573dbda98439755ce0e99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6edc6a1357b5205d1af2f0430075476.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2017-05-26更新
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8卷引用:云南省普洱市景东彝族自治县第一中学2019-2020学年高一月考数学试题