2个求值域的题目1.y=2x-1/2x+1 2.y=x^2-x/x^2-x+1

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2个求值域的题目1.y=2x-1/2x+12.y=x^2-x/x^2-x+12个求值域的题目1.y=2x-1/2x+12.y=x^2-x/x^2-x+12个求值域的题目1.y=2x-1/2x+12.y

2个求值域的题目1.y=2x-1/2x+1 2.y=x^2-x/x^2-x+1
2个求值域的题目
1.y=2x-1/2x+1 2.y=x^2-x/x^2-x+1

2个求值域的题目1.y=2x-1/2x+1 2.y=x^2-x/x^2-x+1
1
(负无穷,1)并(1.正无穷)