(b) Find the sum to n terms of the serie...

(b) Find the sum to n terms of the series `1 xx 2 xx 3 + 2 xx 3 xx 4 + 3 xx 4 xx 5 + ..`.

A

`n(n+1)(n+2)`

B

`(n+1)(n+2)(n+3)`

C

`(1)/(4)n(n+1)(n+2)(n+3)`

D

`(1)/(4)(n+1)(n+2)(n+3)`

Verified by Experts

The correct Answer is:

A

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