已知m、n满足25^m*2*10^n=5^7*2^4,求√(m^2+n^2)的值

已知m、n满足25^m*2*10^n=5^7*2^4,求√(m^2+n^2)的值 已知满足m²+n²+2m-6n+10=0,求m,n的值 已知单项式M,N满足3x(M-5x)=6x^2y^3+N,求M,N 已知质数m,n,满足3m+n=17,求(2m+3)/5n的值 已知正数m,n满足5m+2n=20,求1/m+1/n的最小值 已知m,n满足方程组m+3n=5,3m+n=-1则m+n= 已知m,n为正整数,求出满足等式3n+4n+5n+…+（n+2）n=(n+3)n的所有正整数n 已知m/n=5、,求（m/（m+n）)+(m/(m-n))-(n^2/(m^3-n^2)) 已知|m|=5,|n|=2 |m+n|=m+n,求m-n 已知m,n满足关系式m^2+n^2-2m-4n+5=0,试求n^m的值 满足m^2+n^2+2m-6n+10=0 m、n等于多少 已知m,n满足(m-2)²+|½n+1|=0.求[(3m-n)²-(2m+n)²+5m(m-n)]÷5m的值 已知单项式M N满足3x(M-5x)=6x^2y^2 求M N 已知实数m,n满足m^2-2m-1=0,n^2-2n-1=0,求n/m+m/n的值?如题, 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满足m的平方-2m-1=0,n的平方-2n-1=0,求n/m=m/n的值. 已知m,n满足m^2--3m=1,n^2--3n=1 求n/m+m/n 已知m,n满足根号下m-2n+丨2m-n-6丨=0求根号下n/m × 根号下m^2+n^2.