设m,n满足m^2+n^2+2m+4n+5=0,求n^m的值
已知实数m.n满足m^2-7m+2=0,n^2-7n+2=0,求代数式n/m+m/n的值
两不等的实数m,n满足2m^2+m-4=0,2n^2+n-4=0.求m^2+n^2的值
已知m、n互为相反数,且满足(m+n)^2-(n+4)^2=16,求m^2+n^2-n分之m的值
若2m-n/m+2n=5,求3(2m-n)/m+2n-m+2n/2m-n+3的值
诺2m-n/m+2n=5,求3(2m-n)/m+2n-m+2n/2m-n+3的值
已知:3m-5n=0,求m/(m+n)+m/(m-n)-m^2/(m^2-n^2)的值
已知3m-5n=0求m/m+n+m/m-n-m^2/m^2-n^2的值
已知满足m²+n²+2m-6n+10=0,求m,n的值
设m .n 满足m(2次方)+2n+n(根号(2))=17-4(根号(2)),求m+n的平方根
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
设实数m,n满足m^2n^2+m^2+n^2+10mn+16=0求m^n
已知:2m-5n=0 求下式的值 (1+n/m-m/m-n)/(1+n/m-m/m-n)