Find the integer that is closest to $1000\sum_{n=3}^{10000}\frac1{n^2-4}$.
Question:
Find the integer that is closest to $1000\sum_{n=3}^{10000}\frac1{n^2-4}$.
Answer:
Let's think step by step.

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521
Find the integer that is closest to $1000\sum_{n=3}^{10000}\frac1{n^2-4}$.
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