Question

共已知实数x,y满足(x+16）²-更好y+1=0,求根号x,y的算术平方根

Answer 1

∵实数x,y满足(x+16）²-√﹙y+1﹚=0,

∴x+16=0,y+1=0

∴X=-16,Y=-1

∵X=-16﹤0,Y=-1﹤0

∴x,y没有算术平方根