# Trick Question

1. Apr 16, 2007

### iceman_ch

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

Find the limit of sequence if it converges; otherwise indicate divergence.

a_n=(5-9n+6n^4)/(7n^4+5n^3-3)

answers

a=6/7
b=-2
c=5/7
d=diverges

2. Relevant equations

none

3. The attempt at a solution

The limit of A_n is equal to 6/7 wich is one of the answers but, I thought that if the limit dosen't equal zero then it is divergent? Any help would be great.

Thanks

2. Apr 16, 2007

### Mathgician

You may be confusing sequences with series. You question involves sequences

3. Apr 16, 2007

### iceman_ch

Well now I feel stupid. I can't believe I missed that. For some reason I thought it was saying series. Thanks for pointing that out.

4. Apr 16, 2007

### Mathgician

:rofl: yeah, the trickiest questions are the one where we don't dare to spot the obvious. I can't count how many times this happens to me with math problems.

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook