Saturday, 16 April 2016

Find the sum to n terms as well as the sum to infinity of the series:

Find the sum to n terms as well as the sum to infinity of the series:




13+142!+153!+.



I was trying this question many times but I didn't get the answer. I was using geometric series formula, but it was not applicable here...I don't know where I have to start, and I don't know any hint about this series....



If anybody helps me, I would be very thankful to him.

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