若实数m.n满足m^2+n^2+2m-4n+5=0,求m^n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
两不等的实数m,n满足2m^2+m-4=0,2n^2+n-4=0.求m^2+n^2的值
若2m-n/m+2n=5,求3(2m-n)/m+2n-m+2n/2m-n+3的值
已知实数m、n满足根号下2m-3n-3+m-2n-2的绝对值=0,求7m-8n的立方根
若实数m,n,p满足m-n=8,mn+p^2+16=0,求m+n+p的值
已知m,n为实数,m不等于n且m的平方-2n-5=0,n的平方-2m-5=0,求m分之n+n分之m的值
已知sina+mcosa=n,求msina-cosa的值(实数m,n满足1+m^2>n^2)
若m,n是两个不相等的实数,且满足m^2 m=1,n^2+n=1,求代数式2m的平方加4n的平方-4m-8n加2005的
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
诺2m-n/m+2n=5,求3(2m-n)/m+2n-m+2n/2m-n+3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