Question: Computer Science HELP . . Prove the following forumals: . a) j=1 n j2 j = (n - 1)2 n+1 + 2 . b) 2n

Computer Science HELP

.

.

Prove the following forumals:

.

a) j=1 n j2j = (n - 1)2n+1 + 2

.

b) 2n < n!, for every integer n 4

.

c) j=1 n j3 = ( j=1 n j)2

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