Living Off Your Money Suppose a rich uncle has left you A0 dollars, which is invested at r...

Living Off Your Money Suppose a rich uncle has left you A0 dollars, which is invested at rate r compounded continuously. Show that if you make withdrawals amounting to d dollars per year (where d > r A0), the time required to deplete the account to zero is

What happens to the account when the annual withdrawal is not greater than r A0?