满足等式x√y+√xy-√2003x-√2003y+√2003xy=2003正整数对(X,Y)的个数是哪几对
设xy是有理数,且xy满足等式x+2y-√2y=17+4√2,试求(√x+y)的2009次方
满足x方-4xy+6y方-4x-4y+6=0的正整数对(x,y)
设xy是有理数,且xy满足等式x+2y-√2y=17+4√2,试求(√x+y)2009次方
已知XY是有理数,并且满足等式x-2y-√2y=17-4√2,求X+Y的值
正整数x,y满足x2-y2=2xy,求x-y/x+y的值
求方程组的正整数解:x√(yz)+y√(xz)=39-xy y√(xz)+z√(xy)=52-yz z√(xy)+x√(
已知两个有理数xy满足等式x3+2y+√5*y=17-5√5求√2(x-y)的值
设xy为有理数,并且满足等式x +2y - √2 y = 17 + 4√2试求(√x+y)
设xy为有理数,并且满足等式x +2y - √2 y = 17 + 4√2试求x+y.
实数x,y满足x^2-2xy+y^2-√3x-√3y+12=0,则xy的最小值是多少?
已知实数x,y满足x^2+√2y=√3,y^2+√2x=√3,求x+y和xy的值
已知,x,y满足√4x-5y+√x-y-1=0,求√xy-√x/y的值