1、化简9^m+1*27^m-1
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1、化简9^m+1*27^m-11、化简9^m+1*27^m-11、化简9^m+1*27^m-1=9^m+1*(3*9)^m-1=9^m+1*9^m-1*3^m-1=9^m=m+1-1*3^m-1=9
1、化简9^m+1*27^m-1
1、化简9^m+1*27^m-1
1、化简9^m+1*27^m-1
=9^m+1*(3*9)^m-1
=9^m+1*9^m-1*3^m-1
=9^m=m+1-1*3^m-1
=9^2m*3^m-1
=3^4m*3^m-1
=3^4m+m-1
=3^5m-1
^如果是幂的意思,应该是这么做.
看不大懂啊
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1、化简9^m+1*27^m-1
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已知9^m*27^m-1除以3^2m=27,m的值
(M/1):(M/0.
(((m>=1) & (m