# How do i solve this ?

1. Nov 6, 2009

### Jac8897

1. The problem statement, all variables and given/known data

http://img513.imageshack.us/img513/2687/problem15001.jpg [Broken]

2. Relevant equations

I know the answer is e but i forgat how to do the lny=xln(1+1/n) and then I solve an get an e because ln and e are inverse but i forgot the process can you please show me the process

3. The attempt at a solution

Last edited by a moderator: May 4, 2017
2. Nov 6, 2009

### lanedance

at the stage

$$\stackrel{lim}{n \rightarrow \infty}, ln(y) = n.ln(1+1/n)$$

the limit is indeterminant 0 * infinity, so can you re-write it and use L'Hopitals rule...?