Counting & ProbabilityEasyBinomial Theorem, Pascal & Combinatorial Identities ShareBinomial Theorem, Pascal & Combinatorial Identities · Easy problemEvaluate (55)+(65)+(75)\binom{5}{5}+\binom{6}{5}+\binom{7}{5}(55)+(56)+(57).Check Show answer Walk through it step by step Practice more like this Review this concept