已知实数x y满足x-2y=3,则根号x2+y2最值是多少?
已知实数x y满足x-2y=3,则根号x2+y2最值是多少?
已知实数x,y满足x2+y2-2x+2y=6求x2+y2的最值
已知实数x,y满足方程组x+xy+y=2+3根号2和x2+y2=6.求|x+y+1|的值.
已知实数x,y满足x2+xy+y2=3,则x2-xy+y2的最小值
已知实数x,y 满足x2+y2+2x=0则x+y得最小值
已知实数x,y 满足x2+y2+2x-2√3y=0求:
已知实数x、y满足2x2-7xy+3y2=0,求x:y
已知实数x.y满足(x2+y2)(x2+y2-1)=2,求x2+y2的值
已知实数x,y满足x2+y2-2x+4y=0,则x2+y2的最小值是
已知实数x,y满足方程x2+y2-4x+1=0求x2+y2+2x的最值
已知非零实数x,y满足:x2+xy-2y2=0,求(x2+3y+y2)/(x2+y2)的值
已知实数x,y满足方程组{x+xy+y=2+3倍根号2 {x2+y2=6 求(x+y+1)的绝对值