已知m,n满足关系式m^2+n^2-2m-4n+5=0,试求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
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
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
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
已知:2m-5n=0 求下式的值 (1+n/m-m/m-n)/(1+n/m-m/m-n)
已知-m²+2m=4n,-n²+2n=4m,求m/n的值
已知M N为整数且满足方程2M的平方;+N的平方+3M+N-1=0 求M N的值
已知m,n为整数,且满足2m^2+n^2+3m+n-1=0,求m,n的值
已知m-2n=3.求[(3m+2n)(3m-2n)-(m+2n)(5m-2n)]÷1/3 m 的值.
已知m/n=5/3,求分式m/(m+n)+m/(m-n)-n^2/(m^2-n^2)的值