已知x、y满足x²+y²-6x+2y+10=0,求³√(x²-y²)的
已知实数x, y满足x²+y²-2x+6y+10=0,求y∧-x.
已知x,y满足x²+y²-6x+2y+10=0求³√x²-y²的值
已知非零有理数x,y满足x²-4xy+4y²=0,求x-y/x+y-y-x/x+y的值.
已知x,y的值满足方程组x+2y=3,x-y=-2,求x/(x-y)²+x²-y²/(x+
已知实数x,y满足x²+y²+2x-2y=0,求x²+y²的最大值 x+y的最小
已知实数x,y满足x²+y²-xy+2x-y+1=0 求x y
若x、y满足2x+y=6,x-3y=1,求7y(x-3y)²-2(3y-x)³的值
已知x,y满足x²+y²-4x+6y+13=0则(3x+y)²-(3x+y)(3x-y)的
已知4x²+y²-4x-6y+10=0求(2/3x(√9x)+(y²√x/y³)
已知实数x,y满足根号(x+3y-1)+y²+2y+1=0,求2x-y的平方根
已知实数x,y满足x²+y²+2x+2√3y=0.求x²+y²的最大值.②求x+
已知x,y,z满足x+y+2z=1,x²+y²+6z+1.5=0,求x,y,z的值