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H
1
C
3
PM
1
23 tháng 3 2022
Để giá trị A là phân số thì \(n-7\ne0\)
\(\Rightarrow n\ne7\)
\(\Rightarrow\hept{\begin{cases}n=\left\{0;1;2;3;4;5;6;8;9\right\}\\n=\left\{-1;-2;-3;-4;-5;-6;-8;-9\right\}\end{cases}}\)
NT
1
LA
0
ML
3
7 tháng 1 2021
Khó vãi lìn.Ai mà giải được,toán lớp 6cow màaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
B
B