正数x,y满足x^2-y^2=2xy,求(x-y)除以(x+y)的值.
若正数x,y满足x平方-y平方=2xy,求x-y除以x+y的值
正数x,y满足x^2-y^2=2xy,求(x-y)/(x+y)的值
若正数x,y满足x²-y²=2xy,求(x-y)/(x+y)的值
正数x、y满足x平方减去y平方=2xy,求(x-y)/(x+y)的值
正数x,y满足x²-y²=2xy,求x-y/x+y的值
(1)正数x,y满足x^2-y^2=2xy,求(x-y)/(x+y)
正数xy满足x2-y2=2xy,求x+y分之x-y的值
正数x.y满足x的平方减y的平方=2xy,求(x-y):(x+y)的值.
正数X,Y满足X^2-Y^2=2XY,求X-Y/X+Y的值?(需要具体解法)
1.已知正数x,y满足x2-y2=2xy,求(x-y)/(x+y)的值
正数x、y满足1/x+9/y=1 求xy的最小值?求x+2y的最小值?
已知正数xy满足x+2y=2,求1/x+1/y的最小值