若x,y满足根号下4x-5y+根号下x-y-1 等于零,求根号下xy-根号下x╱y的值?
若x,y满足根号下4x-5y+根号下x-y-1 等于零,求根号下xy-根号下x╱y的值?
已知x、y满足根号下4x-5y+根号下x-y-1=0,则根号下xy-根号下x/y
若x、y满足y=(根号1-2x)+( 根号(x-1)的平方减根号下2x-1,求x+y的平方根?
已知根号下4x-5y与根号下x-y-1互为相反数,则根号下xy-根号下x/y的值为
已知根号下x-2+1加根号下2x+y-1等于零,求x+y的值
(x+y)/(根号下x+根号下y)+2xy/(x根号下y+y根号下x)=______.
已知x+y=5,xy=3,求根号下x/y+根号下y/x的值
若X>0,y>0,且x-根号下xy-2y=0,求(2x-根号下xy)/y+2根号下xy的值
若x>0,y>0,且x-根号下xy-2y=0,求【2x-根号下xy】÷【y+2根号下xy】的值
已知实数x、y满足y=根号下x-3+(根号下3-x)加12,求根号下xy的值
已知根号下X+根号下Y=根号下5+根号下3,根号下xy=根号下15减根号下3,求X+Y的值
已知根号下X+根号下Y=根号下5+根号下3 求x²+3xy+y²的值