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If y=f(x)=((x+2))/((x-1)),t h e n (a)...

If `y=f(x)=((x+2))/((x-1)),t h e n` (a)`x=f(y)` (b) `f(1)=3` (c)`y` increases with `x`for`x<1` (d)`f` is a rational function of `x`

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