Calling on all Math Whizzes... Can anyone please help...

Show that for

where

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- March 16th 2013, 09:05 PMqwertyuiopAlgebra
Calling on all Math Whizzes... Can anyone please help...

Show that for

where

- March 16th 2013, 09:19 PMMacstersUndeadRe: Algebra
You can re-write the expression as

by factorial property

factor out lambda not dependent on i

Let change of index.

If you can show

is equal to 1, then you are done. This sum looks extremely familiar to me, might be from statistics. I'll help you find a solution for this part if you need it online.

EDIT://

Note that is constant and that the remaining is the Taylor Series expression of - March 16th 2013, 10:23 PMqwertyuiopRe: Algebra
- March 16th 2013, 10:58 PMGusbobRe: Algebra
MacstersUndead's edit is the solution. The first line comes from the fact that