解题方法
1 . 下列结论错误的是( )
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
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2 . 下列的一段推理过程中,推理错误的步骤是_______
∵![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
即
……①
即
……②
即
……③
∵
可证得
……④
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e678a6cab6d689314a4a639e6fe4f9ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e983c9ddd1045930931eaff9ad13713e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f49dfdcb328fbac7cb66775b681b571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fcb433b586f7f3778c434cdfd53786f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4585445fc3874efc86d9d65ff46b9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c76d4d80077e9bd4d7f41cdad06bf21.png)
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eae7ddeaac0eb3141b60d0494e58838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f748124c4d2c2f580d034a19eb1193ea.png)
您最近一年使用:0次
2019-09-13更新
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213次组卷
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2卷引用:云南省保山市第一中学2018-2019高二下学期期末数学(文)试卷