Math, asked by mdinzamamul, 1 year ago

find the sum of the following series to n terms 1.2.3+2.3.5+3.4.7+..........

Answers

Answered by nishita19
3
n(n+1)(2n+1) is n term
Answered by Harshanandchoudhary
2

Answer:

1/2n (n+1)^2 (n+2)

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