Question: Prove by induction, or otherwise, (a) 1 x 1! + 2 x 2!++nxn! = (n + 1)! - 1, (b)+(1) ++ (n) 0 =

Prove by induction, or otherwise, (a) 1 x 1! + 2 x 

Prove by induction, or otherwise, (a) 1 x 1! + 2 x 2!++nxn! = (n + 1)! - 1, (b)+(1) ++ (n) 0 = 2", n (b) (c) (") + (2) +---+ (7) +n = 2n-1n. n

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