如果有理数X、Y满足|X-Y|+(XY-2)^2=0,试求1/XY+1/(X+1)(y+1)+1/(X+2))
如果有理数x,y满足|x-1|+(xy-2)2=0.
如果有理数X、Y满足|X-Y|+(XY-2)^2=0,试求1/XY+1/(X+1)(y+1)+1/(X+2))
有理数x,y ,满足2x的平方-2xy+y的平方+2x+1=0 求(xy)的2011次方
(1)正数x,y满足x^2-y^2=2xy,求(x-y)/(x+y)
有理数x,y满足|x+y-3|+(x-y+1)²=0,求(xy²)²X(x²y)
如果有理数xy满足丨x-1丨+(xy-2)²=0 求x和y的值
1、若有理数x、y满足|4-2x|+(y-3x)平方=0,则代数式x平方-2xy+y平方的值为_____________
1、已知xy满足(x+1)²+1y+21=0试求-2xy·5x²y+(0.5x²y&sup
有理数x、y满足(x-y)的平方+x的平方+2x+1=0,则(xy)的2009次方是多少
有理数x、y满足(x-y)的平方+x的平方+2x+1=0,则(xy)的2012次幂等于几?
有理数X Y满足(X-Y)平方+X平方+2X+1=0,则(XY)的2011次方等于多少
x(x-1)-(x平方-y)=-3,求x平方+y平方-2xy