I'm attempting this question on binomial distributions:
are the first 3 terms of the series expansion of
Use this to find the 1st 3 terms of the series expansion of
This is what I've done:
1) Substituted (m+1) into the initial expansion to give the expansion for :
2) Used the binomial theorum to expand :
3) Is this along the right lines...if so where do I go from here? Or am I doing completely the wrong thing from the start?