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If \(k\) is not equal to \(0, 1,\) or \(-1\) is \(\dfrac1{k}>0?\)
(1) \(\dfrac1{k-1}>0\)
(2) \(\dfrac1{k+1}>0\)
Answer: A
Source: GMAT Prep
(1) \(\dfrac1{k-1}>0\)
(2) \(\dfrac1{k+1}>0\)
Answer: A
Source: GMAT Prep
