非零复数x,y满足x2+xy+y2=0,则x/(x+y)2012+y/(x+y)2012的值是拜托了各位
已知非零实数x,y满足:x2+xy-2y2=0,求(x2+3y+y2)/(x2+y2)的值
正整数x,y满足x2-y2=2xy,求x-y/x+y的值
整数x,y满足x2-y2=2xy,求x-y/x+y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.
若实数x,y满足x2-2xy+y2+x-y-6=0,则x-y的值是( )
正数xy满足x2-y2=2xy,求x+y分之x-y的值
已知实数x,y满足(x2)+(y2)-xy+2x-y+1=0,求x,y的值
已知实数x、y满足X2+y2-xy+2x-y+1=0,试求x、y的值
已知非零实数x、y满足x-5(√xy)-6y=0,则x/y
若实数x,y满足x2+y2+xy=1,则x+y的最大值是 ( )
若实数xy满足x2十y2-2x+4y=0,则x-2y的最大值为多少?
已知实数x,y满足x2+xy+y2=3,则x2-xy+y2的最小值