m^2+3m=n^2-3n=1 求:(m^2*n^2+1)/n^2
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
m,n,(2m-1)/n,(2n-1)/m为正整数,m,n>=2.求m,n
已知m-2n=3.求[(3m+2n)(3m-2n)-(m+2n)(5m-2n)]÷1/3 m 的值.
已知3m=2n,则m/(m+n)+n/(m-n)-n^2/(m^2-n^2)=?
如果m-3n+4=0 求(m-3n)^2+7m^3-3(2m^3n-m^2n-1)+3(m^3+2m^3n-m^2n+n
若m-n=1,3m+2n=-2求代数式3m(m-n)-2n(n-m)的值
已知m,n满足m^2--3m=1,n^2--3n=1 求n/m+m/n
设m n为自然数,定义m*n=m+(m+1)+(m+2)+(m+3)+.(m+n)
已知M=1/3,N=1/27,求(M-N/根号M-根号N)+(M+4N-4根号MN/根号M-2N)的值.
已知m=1/3,n=1/27,求m-n/根号m-根号n+(m+4n-4根号mn)/根号m-2根号n
m^2+3m=n^2-3n=1 求:(m^2*n^2+1)/n^2
若(3m-2n+1)与|5m=2n-n|互为相反数,求m+n的值