已知2^m=3,32^n=6,求2^3m-10n
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
已知2^m=a,32^n=b,m,n为正整数,求2^(3m+10n)
已知|2m-n/m+2n|=3,求2(2m-n)/m+2n-2m-n/m+2n-3的值
已知m-2n/2m+n=5,求代数式3(m-2n)/2m+n-15(2m+n)/m-2n-2
已知m^2+n^2-6m+10n+34=0,求m-n
已知3m=2n,则m/(m+n)+n/(m-n)-n^2/(m^2-n^2)=?
已知√m-n +√3m-2n=0,求4m²-mn+6n²-2m²+6mn-10n²
已知m-2n=3.求[(3m+2n)(3m-2n)-(m+2n)(5m-2n)]÷1/3 m 的值.
在线等已知m/n=5/3,求m/(m+n)+m/(m-n)-n^2/(m^2-n^2)...
已知m/n=5/3,求分式m/(m+n)+m/(m-n)-n^2/(m^2-n^2)的值
已知m/n = 5/3 求m/(m+n)+m/(m-n)-n^2/(m^2-n^2)等于多少?(要化简全过程)
已知:3m-5n=0,求m/(m+n)+m/(m-n)-m^2/(m^2-n^2)的值