1.

If RR is the set of all real number and if f : RR - {3} to RR is defined by f(x) = (3x + x)/(3-x) for x in RR - {3}, then the range of f is

Answer»

`RR`
`RR - {1}`
`RR - {-1}`
`RR - {-3}`

ANSWER :A::C


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