(m+n)!/(m+n-2)!-n!/(n-2)!=62怎么化简成 m(m+2n-1)=62 求详解
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
已知:m*m=n+2,n*n=m+2.求m*m*m-2mn+n*n*n(m不等于n).
m(m+2n-1)=62怎么求m和n的值?
已知|2m-n/m+2n|=3,求2(2m-n)/m+2n-2m-n/m+2n-3的值
若2m-n/m+2n=5,求3(2m-n)/m+2n-m+2n/2m-n+3的值
2x+n/m=m/n-(m/n+n/m)x(m+n不等于0)
已知:2m-5n=0 求下式的值 (1+n/m-m/m-n)/(1+n/m-m/m-n)
(m+n)(m-n)-(1-2n)化简
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)
化简m/(m+n)²+n/m²-n²-2n²/(m+n)(m²-n
是否存在正整数m,n,使得m(m+2)=n(n+1)?
若m-n=3,3m+2n=2,求代数式6m(m-n)-4n(n-m)的值