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What is the domain and range of y = x+1/x-1

Sagot :

[tex]y = \frac{x + 1}{x - 1}[/tex]
Domain                         Range
    -3                                 ¹/₂
    -2                                 ¹/₃
    -1                                  0
     0                                 -1
     1                           undefined
     2                                  3
     3                                1¹/₂