Find the domain and range of the following functions.(求定义域和值域)(a) y=(x+1)^0/√|x|-x【注:根号下是|x|-x】(b) y=1/1-√x-2【注:根号下是x-2】

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Find the domain and range of the following functions.(求定义域和值域)(a) y=(x+1)^0/√|x|-x【注:根号下是|x|-x】(b) y=1/1-√x-2【注:根号下是x-2】
Find the domain and range of the following functions.(求定义域和值域)
(a) y=(x+1)^0/√|x|-x
【注:根号下是|x|-x】
(b) y=1/1-√x-2
【注:根号下是x-2】

Find the domain and range of the following functions.(求定义域和值域)(a) y=(x+1)^0/√|x|-x【注:根号下是|x|-x】(b) y=1/1-√x-2【注:根号下是x-2】
(a) y=(x+1)^0/√|x|-x
√|x|-x不等于0  x+1不等于0  计算得x<0且x不等于-1
√|x|-x>0   y=(x+1)^0/√|x|-x在定义域内等于y=1/√|x|-x  所以y>0
定义域x<0且x不等于-1  值域y>0
(b) y=1/1-√x-2
x-2>=0  x<=2
 y=1-√x-2   √x-2>=0   y<=1
定义域x<2   值域y<=1

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