已知实数M,N满足M^2+N^2=B,其中X^2+Y^2=B,其中A,B为常数,求MX+NY的最小值

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 已知实数m、n满足m2+n2=1,求动点P(m+n,2m-n)的轨迹方程. 已知sina+mcosa=n,求msina-cosa的值(实数m,n满足1+m^2>n^2) 已知m、n是实数,且满足m²+2n²+4/3n+17/36=0,则 已知实数m,n满足m^2+m-2009=0,1/n^2-1/n-2009=0,(mn不等于-1),则1/m-n=? 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 已知实数m,n满足等式m2-m-根号3=0,n2-n-根号3=0,且m不等于n,求(mn)2-m-n 若实数m n 满足(m+n)(m+n-2)-8=0 则m+n=? 已知实数M,N满足M^2+N^2=B,其中X^2+Y^2=B,其中A,B为常数,求MX+NY的最小值 已知实数m,n满足m^2 n^2=a,x,yx满足^2 y^2=b其中a,b为常数,求mx ny最小值已知实数m,n满足m^2+n^2=a,x,y满足x^2+y^2=b其中a，b为常数，求mx+ny最小值 已知实数a,b,m,n满足a^2+b^2=1,m^2+n^2=1求证:am+bn 已知向量a,b满足|a|=|b|=1,实数m,n满足m^2+n^2=1.则|ma+nb|的取值范围是|ma+nb|≤|ma|+|nb|≤√2(m^2+n^2) 1.已知实数m.n满足mn 已知实数m、n满足m^2+5m+n-9=0,则m+n的最大值为 A.51/4 B.61/4 C.71/4 D.13 实数m、n满足（m-n）（m-n）+m-n-2=0,则m-n的值为?急..... 已知实数m、n满足mn=2,m+2n=8,求代数式2m^2n+4mn^2的值 已知m,n是实数,且满足m^2+2n^2+m-3/4n+17/36=0,则-mn^2的平方根是( )