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Source: — Data Sufficiency |
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by thephoenix » Sun Apr 11, 2010 5:37 am
from question 8!=K(a^n)
s1)-->a^n=64---> it can be 4^3 ; 2^6 and 8^2 for each condition k is an integer insuff

s2) if n is 6 then a has to be suff
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