Question: Problem 4. Proving binomial identities via counting 4 points possible (graded)Binomial identities (i.e., identities involving binomial coefficients) can often be proved via a counting interpretation.
Problem 4. Proving binomial identities via counting
4 points possible (graded)Binomial identities (i.e., identities involving binomial coefficients) can often be proved via a counting interpretation. For each of the binomial identities given below, select the counting problem that can be used to prove it.
Hint: You may find it useful to review the lecture exercise on counting committees before attempting the problem.
(You need to answer all 4 questions before you can submit.)




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