已知实数x,y满足x²+√2y=√3,y²+√2x=√3且x≠y 则x+y=______,xy=__
已知实数x,y满足x²+√2y=√3,y²+√2x=√3且x≠y 则x+y=______,xy=__
已知实数x,y满足x²+(√2)y=√3,y²+(√2)x=√3,且x≠y,求x+y和xy的值.
已知实数x,y满足x^2+√2y=√3,y^2+√2x=√3,求x+y和xy的值
已知x、y均为实数,且满足xy+x+y=17,x^2y+y^2x=66,求x^4+x^3y+x^2*y^2+y^3x+y
已知实数x,y满足x²+y²+2x+2√3y=0.求x²+y²的最大值.②求x+
已知实数x,y,满足x-√x-1=√y+3-y,则x+y最大值是?
已知实数x,y满足x²+y²-xy+2x-y+1=0 求x y
已知实数x,y满足x=√(9-x+2y)+√(3x-6y-27)+5,则-2x-y的立方根为
已知正实数x、y满足x+2y=xy,则2x+y的最小值等于______.
已知正实数x,y满足xy+2x+y=4,则x+y的最小值为______.
已知X,y是正实数,且xy-x-y=1,求证x+y>/2+2√2
已知x,y是正实数,且xy-x-y=1,求证x+y≥2+√2