Take the 2-minute tour ×
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.

Find an approximation up to the second term of $z_n$ where $z_{n+2}=z_{n+1}+\sqrt{n}z_{n}$ and $z_{2}=2z_{1}>0$.

share|improve this question

closed as too localized by Jennifer Dylan, Did, William, Noah Snyder, tomasz Oct 5 '12 at 19:45

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

math.stackexchange.com/questions/163889/… –  user2468 Jul 10 '12 at 19:28