Question: Compute the sum {1 / (i2 -1) : 2 i n}. Compute the sum {1 / (i(i+1)(i+2)) : 1 i n}.

Compute the sum {1 / (i2 -1) : 2 i n}.

Compute the sum {1 / (i(i+1)(i+2)) : 1 i n}.

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