若x^2+y^2-8x-10y+41=0,求x/y+y/x的值
若x^2+y^2-8x-10y+41=0,求x/y+y/x的值
已知x*x-4xy+4y*y=0 求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的值?
若|x+y-1|+(x-y-2)²=0,求代数式(x+2y)(x-2y)-(2x-y)(-y-2x)的值.
已知x+y/y=11/8,求x-y/x+2y的值.
已知x^2-2x+y^2+6y+10=0,求分式x-y/x+y的值
已知x^2+y^2-6x-8y+25=0,求分式y/x - x/y的值
已知x^2+y^2-6x-8y+25=0 求y/x-x/y的值
已知x,y满足x^2+y^2-6x+8y+25=0,求y^x的值
已知x^2+y^2-10x-12y+61=0,求x/y-y/x的值
已知:4x^2+y^2-4x-6y+10=0,求y/x-x/y的值
若X,Y互为相反数,且(X+Y+3)(X-Y-2)=0,求X,Y的值?
若x,y为正数,且2*x+8*y-x*y=0,求x+y的最小值