1. infinite summation problem

I need to calculate the sum of the first n terms of ln(a)^n÷n! where 0≤n≥10. What values of a can I use?
EDIT: sorry i meant 0≤n≤10

where 0≤n≥10
???????

I think you meant $0\leq n \leq 10$

you can use all values of $a$ that don't cause problems with the range of $\ln(a), i.e., a > 0.$

3. Are you sure there is a stipulation on the value of $n?$ If this is in fact an infinite series then we have:

$\sum_{n=0}^{\infty} \frac{\ln(a)^n}{n!} = e^{ln(a)} = a$ where $a>0.$

4. ok, thank you all