part b says "hence find an expression for ". The answer is but I have no idea how to get this answer. Do you know of any notes on the internet with recurrence sequences?
part b says "hence find an expression for ". The answer is but I have no idea how to get this answer. Do you know of any notes on the internet with recurrence sequences?
Since then substitute so
but you already know from the first part.
You might try googleing it on the web. Like I did to get this site