AS/A2 Pure 1 Pure 3

P2 Topic 3: Sequences and series
The binomial expansion of (1 + x)n for a positive integer n
These are all examples of binomial expansions:
Find the binomial expansion for any integer n.

Enter a value for n:

Summary Note that the coefficients in the expansion are the numbers the rows of Pascal's Triangle. This expansion is a particular case of the the general binomial expansion where a=1, b=x. © MathsNet 2001