(x-1)^2+(y-2)^2=8.5^2这是一个圆的方程,有无数个x,y满足要求的啊!
x^2+y^2-2*x-4*y-67.25=0,求x,y
3个回答
相关问题
-
已知x,y满足x2+y2-4x+y+4.25=0 求（x+y）2
-
2(x-y)(x y)-(2x-y)(x 2y),x=0.25,y=-4
-
X2+Y2+8X+6Y+25=0 求代数式(x2-4y2/x2+4xy+4y2)-x/x+2y
-
设实数x,y满足x^2+y^2+8x+6y+25=0,求(x^2-4y^2)/(x^2+4xy+4y^2)-x/x+2y
-
2(x-y)(x+y)-(2x-y)(x+2y),其中x=0.25,y=-4
-
1.{2x+y=-2,2x-y=6 2.{0.25x-0.5y=2,0.4x+0.25y=20
-
5.已知x = 0.67,y=0.33,求x^2 ＋y^2 ＋2xy－x－y的值
-
已知x^2+y^2-4x+y+4.25=0 求y^-x+3xy值
-
已知x2+y2+8x+6y+25=0，求x2−4y2x2+4xy+4y2−xx+2y的值．
-
若|x+2y-1|+y²+4y+4=0,求（2x-y）²-2（2x-y)(x+2y)+(x+2y)&