1.若(3n)^3=216,(2m)^2=9,则m^(n+1)=______
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1.若(3n)^3=216,(2m)^2=9,则m^(n+1)=______
2.若2^m=3,2^n=4,则2^mn=______
3.设m^2+m-1=0,求m^3+2(m^2)+2008的值.
2.若2^m=3,2^n=4,则2^mn=______
3.设m^2+m-1=0,求m^3+2(m^2)+2008的值.
![1.若(3n)^3=216,(2m)^2=9,则m^(n+1)=______](/uploads/image/z/19904097-57-7.jpg?t=1.%E8%8B%A5%283n%29%5E3%3D216%2C%282m%29%5E2%3D9%2C%E5%88%99m%5E%28n%2B1%29%3D______)
1.分别算出n=2,m=3/2,则m^(n+1)=27/8
2.算出n=2,2^mn=(2^m)^n=3^2=9
3.m^3+2(m^2)+2008=m*(m^2+m-1)+(m^2+m-1)+2009=2009
2.算出n=2,2^mn=(2^m)^n=3^2=9
3.m^3+2(m^2)+2008=m*(m^2+m-1)+(m^2+m-1)+2009=2009
若(m-2n)/(2m+n)=3,则[3(m-2n)/(2m+n)-(m-2n)/[2(2m+n)] - {9(m-2n
1.若A(m-1,2n+3)与B(n-1,2m+1)关于x轴对称,则m=______.n=______.
已知m,n,p都整数,且|m-n|3+|p-m|5=1,则|p-m|+|m-n|+2|n-p|=______.
已知m,n,p都是整数,且|m-n|+|p-m|=1,则|p-m|+|m-n|+3(n-p)2=______.
已知3m=2n,则m/(m+n)+n/(m-n)-n^2/(m^2-n^2)=?
若2m+n=25,m-2n=2,则(m+3n)2-(3m-n)2=______.
若|m-n|=n-m,且|m|=4,|n|=3,则(m+n)2=______.
若实数m,n满足条件m+n=3,且m-n=1,则m=______,n=______.
m,n互为相反数,则(3m-2n)-(2m-3n)=______.
1,已知3m=4n,则m/m+n +n/m-n -m^2/m^2-n^2=
已知0≤m-n≤2,2≤m+n≤4,则当m-2n达到最小值时,3m+4n=______.
已知m-3n=2m+n-15=1,则m=?,n=?