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Source: — Data Sufficiency |
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by rijul007 » Sat Oct 29, 2011 8:32 am
statement 1
1/(k-1) > 0

k > 0

1/k > 0 will always be true.

statement 2
1/(k+1) > 0
k > -1

for -1>k>0
1/k >0 is false

for k>0
1/k >0 is true



Hence statement 1 alone is sufficient.
Option A
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