Answer:
It's the first choice.
Explanation:
The first term is the value of n / (2n +1) when n = 1
So first term = 1 (2 + 1) = 1/3
Second term = 2/(2(2) + 1) = 2/5
Third term = 3 / (3(2) + 1) = 3/7 and so on.
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