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a) (5 Marks) Suppose an, bn > 0 for all n 2 1, and (2n - 1)bn 1, where Sk = > Cn, prove that

a) (5 Marks) Suppose an, bn > 0 for all n 2 1, and (2n - 1)bn 1, where Sk = > Cn, prove that the series E Cn converges. n=1 n=0

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