Counting & ProbabilityChallengeCounting & Probability ShareCounting & Probability · Challenge problemEvaluate 1⋅1!+2⋅2!+3⋅3!+⋯+8⋅8!1\cdot 1! + 2\cdot 2! + 3\cdot 3! + \cdots + 8\cdot 8!1⋅1!+2⋅2!+3⋅3!+⋯+8⋅8!.Check Show answer Walk through it step by step Practice more like this Review this concept