The sum of (1 2 -1+1)(1!) + (2 2 -2+1)(2!)+.....+(n 2 -n+1)(n!) is: (n+2)! (n-1)((n+1)!)+1 (n+2)!-1 n((n+1)!)-1

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Vikas TU · Answer

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The sum of (1 2 -1+1)(1!) + (2 2 -2+1)(2!)+.....+(n 2 -n+1)(n!) is: (n+2)! (n-1)((n+1)!)+1 (n+2)!-1 n((n+1)!)-1

The sum of (1²-1+1)(1!) + (2²-2+1)(2!)+.....+(n²-n+1)(n!) is:

(n+2)!

(n-1)((n+1)!)+1

(n+2)!-1

n((n+1)!)-1

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The sum of (1 2 -1+1)(1!) + (2 2 -2+1)(2!)+.....+(n 2 -n+1)(n!) is: (n+2)! (n-1)((n+1)!)+1 (n+2)!-1 n((n+1)!)-1

The sum of (12-1+1)(1!) + (22-2+1)(2!)+.....+(n2-n+1)(n!) is: (n+2)! (n-1)((n+1)!)+1 (n+2)!-1 n((n+1)!)-1

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The sum of (1²-1+1)(1!) + (2²-2+1)(2!)+.....+(n²-n+1)(n!) is:

(n+2)!

(n-1)((n+1)!)+1

(n+2)!-1

n((n+1)!)-1