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If sum(k=1)^(31)(""^(31)Ck)(""^(31)C(k-1...

If `sum_(k=1)^(31)(""^(31)C_k)(""^(31)C_(k-1))-sum_(k=1)^(30)(""^(30)C_k)(""^(30)C_(k-1))=(alpha(60!))/((30!)(31!))`, where `alphainR`, then the value' of 16 `alpha` is equal to

A

1411

B

1320

C

1615

D

1855

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