Counting & ProbabilityMediumBinomial Theorem, Pascal & Combinatorial Identities ShareBinomial Theorem, Pascal & Combinatorial Identities · Medium problemEvaluate ∑k=05(5k)2\displaystyle\sum_{k=0}^{5}\binom{5}{k}^2k=0∑5(k5)2.Check Show answer Walk through it step by step Practice more like this Review this concept