S
syduy38
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
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Tìm lỗi sai
Ta luôn có
(-1)^3 =-1
Hay (-1)^(6/2) =-1
Hay (-1)^(6*1/2)=-1
Hay {(-1)^6}^1/2 =-1
Hay 1^(1/2) =-1
Hay 1 =-1
Ta luôn có
(-1)^3 =-1
Hay (-1)^(6/2) =-1
Hay (-1)^(6*1/2)=-1
Hay {(-1)^6}^1/2 =-1
Hay 1^(1/2) =-1
Hay 1 =-1
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