Question: neraj cs 1. Prove that r(r + l)(r + 2): n(n + l)(n + 2)(n + 3) for all n 21.

1. Prove that r(r + l)(r + 2): n(n + l)(n +

neraj cs

2)(n + 3) for all n 21.

1. Prove that r(r + l)(r + 2): n(n + l)(n + 2)(n + 3) for all n 21.

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