若√2-x+(y+1)²=0求(x+y)的值
问题描述:
若√2-x+(y+1)²=0求(x+y)的值
答
2-x+(y+1)²=0
则x=2,y=-1
(x+y)=2-1=1
若√2-x+(y+1)²=0求(x+y)的值
2-x+(y+1)²=0
则x=2,y=-1
(x+y)=2-1=1