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Take quiz & check grades |
c1 n2 <= 0.5 n2 - 3n c1 <= 0.5 - 3/n OK for n>=6, but c1 must be positive c1 can be, at most 0.5 - 3/7 or 1/14
c2 n 2 >= 0.5 n2 - 3n c2 >= 0.5 - 3/n if c2 >= 0.5, this will be true for any value of n thus, for any n0> 6, we can choose: c1<= 1/14 and c2 >=0.5 |