(1)根据平方和绝对值均为非负数,得
2003(x+y)²=0 1/2x+3/2y-1=0
x=-y
1/2x+3/2y-1= -1/2y+3/2y-1=1/y-1=0
解得
y=1
x=-1
(2)
X^2003+Y^2004
=(-1)^2003+1^2004
=-1+1
=0
(1)根据平方和绝对值均为非负数,得
2003(x+y)²=0 1/2x+3/2y-1=0
x=-y
1/2x+3/2y-1= -1/2y+3/2y-1=1/y-1=0
解得
y=1
x=-1
(2)
X^2003+Y^2004
=(-1)^2003+1^2004
=-1+1
=0