A jewerly store sold a 7.4 gold necklace for 162.18 how much was the necklace worth per gram? round your answer to the nearest t
1 answer:
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You can factor the 32 out of the sum:
We can also change the index as follows
Now, we have a theorem that states that the series
converges if and only if , and in this case we have
This is your case, because you have
which implies that your series converges, and the value is