# whats the sum of series:1^5*2^7/1! + 2^5*3^7/2! + 3^5*4^7/3! + 4^5*5^7/4! +......................infinite....

Sumit Majumdar IIT Delhi
7 years ago
Dear student,
The general term of the series can be given by:


So, the required sum can be found as:

Using the standard formulae, the required sum can be found.
Regards
Sumit