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If y = f(x) = (x+2)/(x-1) then...

If `y = f(x) = (x+2)/(x-1)` then

A

f has a local minimum at x=2

B

f has a local maximum at x=2

C

`f''(2)gtf(2)`

D

`f(x)-f''(x)=0` for at least one `x inR`

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A, D
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