How to directly calculate this two binomial series?
Without comparing coefficient with
Only operate the sigma expression.
I did a few similar before but forget the starting.
Thanks with gratitude.
Understanding Algebra S. M. Fan p.391 4.11
Not less to say the objective to do these is to calculate a) + b) to obtain
4nC(0)-4nC(2)+4nC(4)-4nC(6)+... +4nC(4n) Watch
- Thread Starter
Last edited by BookInquiry; 22-04-2013 at 05:12.
- 16-04-2013 14:10
- 16-04-2013 14:39
Not going to bother checking, but (a) looks very like (1+i)^n + (1-i)^n; I'd think (b) is similar.