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Question Number 32933 by abdo imad last updated on 06/Apr/18

Σ u_{n} i s a c o n v e r g e n t s e r i e w i t h p o s i t i f t e r m s

f i n d t h e n a t u r e o f \sum_{n ⩾ 1} \frac{\sqrt{u_{n}}}{n} a n d \sum_{n ⩾ o} \frac{u_{n}}{1 + u_{n}} .