已知实数xy满足方程x2 y2 4x 1 0-标签分类-2025-12-11 04:53
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已知实数xy满足方程x2 y2-4x 1=0,
已知实数xy满足方程(x–2y)² y,²=3,
已知实数xy满足方程(x-2)^2+y^2=3,
已知实数xy满足方程x+2y=6,
已知实数xy满足等式(x-√x2-2008),
已知实数xy满足-4≤x-y,
已知实数x,y满足x2+y2-4x,
已知实数x,y满足x2+y2=1,则(1-xy)(1+xy),
已知实数x,y满足2x-3y=4,用y表示x解,
已知实数xy满足xy-x-y=1
必应
已知实数xy满足方程x2 y2 4x 1 0,
若实数x y满足x2 y2 xy 1,
若xy满足x2+y2-xy 1,
若实数x 0 y 0 且满足x+y 8-xy,
设实数x y满足 x-2 + y-2 ≤2,
已知实数x y满足-x 2+5/2x+y-5 0,
已知三个数x y z 满足xy/x+y -2,
已知正实数x y满足x+y 1,
已知x y是正数 且满足x+2y+xy 30,
已知实数xyz满足x+y+z 5,
设实数 x y 满足 5x2 - 4xy - y2 5 则 2x2 + y2 的最小值为,
已知实数x满足x2 1 x2 3x 3 x+ 2 0求x3 1 x3的值